US20150328099A1
2015-11-19
14/279,773
2014-05-16
The present invention relates to antiperspirant deodorant cosmetic compositions comprising 2-methyl-5-cyclohexylpentanol, aluminum hydrochloride, hydroxypropylic starch phosphate, pantenol, and cosmetically acceptable adjuvants. The compositions exhibit deodorant and antiperspirant actions, sensorial emollient characteristics, and a protective film, and further provide a dermo-calming action on the skin for after-depilation use.
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A61Q19/005 » CPC further
Preparations for care of the skin Preparations for sensitive skin
A61K8/585 » CPC further
Cosmetics or similar toilet preparations characterised by the composition containing organic compounds containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus Organosilicon compounds
A61K2800/75 » CPC further
Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects; Biological properties of particular ingredients Anti-irritant
A61K2800/592 » CPC further
Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects; Chemical, physico-chemical or functional or structural properties of particular ingredients; Mixtures Mixtures of compounds complementing their respective functions
A61K8/34 » CPC main
Cosmetics or similar toilet preparations characterised by the composition containing organic compounds containing oxygen Alcohols
A61Q15/00 » CPC further
Anti-perspirants or body deodorants
A61K8/86 » CPC further
Cosmetics or similar toilet preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds Polyethers
A61K8/42 » CPC further
Cosmetics or similar toilet preparations characterised by the composition containing organic compounds containing nitrogen Amides
A61K8/58 IPC
Cosmetics or similar toilet preparations characterised by the composition containing organic compounds containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus
A61K8/26 » CPC further
Cosmetics or similar toilet preparations characterised by the composition containing inorganic ingredients Aluminium; Compounds thereof
A61Q19/00 IPC
Preparations for care of the skin
The present invention relates to antiperspirant deodorant cosmetic compositions with dermo-calming action for after-depilation sensitized skin, applicable in the cosmetic, hygiene and personal-care industry.
Deodorants are intended for perfuming the body and, in general, they contain antimicrobial components, particularly antibacterial and antifungal, which eliminate bacteria and fungi that cause bad smell on the skin. Deodorants may be applied to armpits to perfume them and diminish the odors generated in this body region; however they do not prevent perspiration.
Antiperspirants have the function of controlling the perspiration by inhibiting or reducing it, thus guaranteeing protection against sweat, besides having antimicrobial action, eliminating the microorganisms that cause bad smell. The antiperspirant action is due to the fact that this product acts by forming a blocking film that prevent sweat from coming out, without causing damage to one's health.
It is known that depilation, be it by wax, laser or nippers, induces cutaneous irritation in determined persons and body regions.
Among the measures which one should take with depilation are: non-exposure to direct sunshine, skin cleaning, use of light and loose clothes, as well as attention to deodorants, creams and body oils used after the depilatory procedure. For this reason, care with the skin has become essential, although cutaneous irritations still occur, even with such care.
In this regard, the search for specific products for this purpose, particularly for deodorants that provide relief of irritation caused on the skin, i.e., sensitized by depilation, becomes critical. Also, in addition to deodorants that relieve irritation, it becomes essential to develop products that group deodorant characteristics to fight odor, antiperspirant for reducing sweat, and still that have a dermo-calming action on the skin.
A few examples of prior-art documents related to the area of the present invention, particularly antiperspirant deodorants, are presented hereinafter.
Patent application PI0924661-4, published on Nov. 21, 2012, in the name of Symrise AG, relates to ฯ-cycle-hexylalkan-1-ols, to the use of said compounds as antimicrobial agents for the treatment of odor on the body or for the preparation of an antimicrobial cosmetic or pharmaceutical formulation. Said PI0924661-4 further describes antimicrobial formulations containing, for instance, 2-methyl-cyclohexylpentanol. However, said document does not mention or suggest the use of said active or formulations thereof as antiperspirant deodorants with dermo-calming action, especially for after-depilation sensitized skin.
U.S. Pat. No. 8,115,033, published on Feb. 14, 2012, in the name of Symrise Ag relates to the chemical compound 3-(4-hydroxy-3-methoxyphenyl)-1-(4-hydroxyphenyl)-1-propanone, which is different from the chemical compound of the present invention called SymDeoยฎ B125: 2-methyl-5-cyclohexylpentanol. In the same way as the above-cited document, U.S. Pat. No. 8,115,033 does not mention or suggest the use of the active presently described and claimed or its formulations as antiperspirant deodorants with dermo-calming action, or use on after-depilation sensitized skin. In addition, even if this were the case, this is an active ingredient that is not foreseen in the composition of the present invention.
U.S. Pat. No. 6,172,016, published on Jan. 9, 2001, in the name of Bush Boakes Allen Inc., is directed to the use of pentane derivatives as cosmetic ingredients. The difference with respect to the chemical compounds SymDeo of the present invention lies in the carbon to which the methyl radical is attached, which is the third one in the American patent, namely: 3-methyl-5-cyclohexylpentanol. Again, this is a document that foresees a deodorant composition without the after-depilation calming benefit for sensitized skins.
Therefore, the need to develop antiperspirant deodorant formulations with dermo-calming action still remains, particularly for sensitized skins, which, in addition to the deodorant and antiperspirant properties, will exhibit emollient sensorial characteristics and a protective film, and provide dermo-calming action on the skin. Such need is fully met with the composition of the present invention.
The present invention relates to antiperspirant deodorant cosmetic compositions with dermo-calming action, which comprise as active ingredients, 2-methyl-5-cyclohexylpentanol and aluminum hydrochloride, as well as commercially acceptable adjuvants, directed to application in the cosmetic, hygiene and body-care industry.
FIG. 1 refers to the result of treatment average as a function of the test for instrumental evaluation of the effect of the composition of the invention (called 13-39540-03) versus control composition on erythema induced by the tape-stripping technique.
FIG. 2 refers to the result of variation percentage in the average of the test for instrumental evaluation of the effect of the composition of the present invention (called 13-39540-03) versus control composition on erythema induced by the tape stripping technique.
FIG. 3 refers to the result of the average difference as a function of the time T0 of the test for instrumental evaluation of the effect of the composition of the invention (called 13-39540-03) versus control composition on erythema induced by the tape-stripping technique.
FIG. 4 refers to the result of treatment average as a function of the time of the test for instrumental evaluation of the effect of the composition of the present invention (called 13-39540-04) versus control composition on erythema induced by the tape-stripping technique.
FIG. 5 refers to the result of variation percentage in the average of the test for instrumental evaluation of the effect of the composition of the invention (called 13-39540-04) versus control composition on erythema induced by the tape-stripping technique.
FIG. 6 refers to the result of average difference as a function of the time T0 of the test for instrumental evaluation of the effect of the composition of the invention (called 13039540-04) versus control composition on erythema induced by the tape-stripping technique.
FIG. 7 refers to the result of treatment average as a function of the time of the test for instrumental evaluation of the effect of the composition of the invention (called 13-39540-01) versus control composition on erythema induced by the tape-stripping technique.
FIG. 8 refers to the result of variation percentage in the average of the test for instrumental evaluation of the effect of the composition of the invention (called 13-39540-01) versus control composition on erythema induced by the tape-stripping technique.
FIG. 9 refers to the result of average difference as a function of the time T0 of the test for instrumental evaluation of the effect of the composition of the invention (called 13-39540-01) versus control composition on erythema induced by the tape-stripping technique.
FIG. 10 refers to the result of treatment average as a function of the time of the test for instrumental evaluation of the effect of the composition of the invention (called 13-39540-02) versus control composition on erythema induced by the tape-stripping technique.
FIG. 11 refers to the result of variation percentage in the average of the test for instrumental evaluation of the effect of the composition of the invention (called 13-39540-02) versus control composition on erythema induced by the tape-stripping technique.
FIG. 12 refers to the result of average difference as a function of the time T0 of the test for instrumental evaluation of the effect of the composition of the invention (called 13-39540-02) versus control composition on erythema induced by the tape-stripping technique.
FIG. 13 refers to the average value of the erythema (E) for the product and control evaluated as a function of the time referring to the test for evaluation of the reduction of the erythema by using the composition of the invention (called NT1123-12-A).
FIG. 14 refers to the average value of the reduction the erythema (% RE) for the product and control evaluated as a function of the time referring to the test for evaluation of the reduction of erythema by using the composition of the invention (called NT1123-12-A).
FIG. 15 refers to the average value of the intensity of the erythema (+a*) for the product and control evaluated referring to the test for evaluation of the reduction of erythema by using the composition of the invention (called NT1123-12-A).
FIG. 16 refers to percentage of reduction of the intensity of the erythema (% RIE) as a function of the time referring to the test for evaluation of the reduction of erythema by using the composition of the invention (called NT1123-13-A).
FIG. 17 refers to the result of treatment average as a function of the test for instrumental evaluation of the effect of the composition of the invention (called 12-33171-07) versus control composition on erythema induced by the tape-stripping technique.
FIG. 18 refers to the result of variation percentage in the average of the test for instrumental evaluation of the effect of the composition of the invention (called 12-33171-7) versus control composition on erythema induced by the tape-stripping technique.
FIG. 19 refers to the result of average difference as a function of the time T0 of the test for instrumental evaluation of the effect of the composition of the invention (called 12-33171-07) versus control composition on erythema induced by the tape-stripping technique.
The antiperspirant deodorant cosmetic compositions with dermo-calming action of the present invention comprise 2-methyl-5-cyclohexylpentanol and aluminum hydrochloride and derivatives thereof as active ingredients, as well as cosmetically acceptably adjuvants.
Said adjuvants suitable for the purposes of the cosmetic compositions of the invention are selected, for example, from the group consisting of demineralized water, oils, emulsifiers, preservatives, sequestrants (chelating agents), fragrance and others cosmetically acceptable components.
A few examples of inert adjuvants and constituents compatible with the properties of the compositions described herein and that, additionally, may be employed in the present cosmetic composition are given hereinafterโin a non-restrictive, but only demonstrative manner
The composition according to the present invention may be present in different cosmetic forms as, for instance, and without any limitation, in the form of roll-on or cream deodorant.
According to a preferred embodiment of the present invention, the deodorant cosmetic composition of the present invention comprises:
The antiperspirant deodorant cosmetic composition with dermo-calming action of the present invention has a number of advantages and desired characteristics with the ideal and balanced combination between its components, some of which are listed below:
The embodiments of the invention exemplified hereinafter are intended to illustrate, without limiting, the scope of their object.
Table 1 below presents an example of formulation of the cosmetic composition according to the present invention in roll-on form.
| TABLE 1 | |
| Component | Concentration (% by weight) |
| Demineralized water | 56.3 |
| Aluminum hydrochloride (50% solution) | 30.0 |
| Olus oil | 3.8 |
| Steareth-2 | 3.0 |
| Hydroxypropylic starch phosphate | 1.5 |
| Steareth-21 | 1.1 |
| Stearylic PPG-15 ether | 1.0 |
| Perfume | 1.0 |
| Pantenol | 1.0 |
| DMDM hydantoin | 0.6 |
| 2-methyl-5-cyclohexylpentanol | 0.4 |
| Silica dimethyl silicate | 0.15 |
| Disodium EDTA | 0.1 |
| BHT | 0.05 |
Table 2 below presents one more example of formulation of the cosmetic composition according to the present invention in roll-on form.
| TABLE 2 | |
| Component | Concentration (wt.-%) |
| Demineralized water | 60.1 |
| Aluminum hydrochloride (50% solution) | 30.0 |
| Steareth-2 | 3.0 |
| Hydroxypropylic starch phosphate | 1.5 |
| Steareth-21 | 1.1 |
| Stearylic PPG-15 ether | 1.0 |
| Perfume | 1.0 |
| Pantenol | 1.0 |
| DMDM hidantoin | 0.6 |
| 2-methyl-5-cyclohexylpentanol | 0.4 |
| Silica dimethyl silicate | 0.15 |
| Disodium EDTA | 0.1 |
| BHT | 0.05 |
Table 3 below presents one more example of formulation of the cosmetic composition according to the present invention in roll-on form.
| TABLE 3 | |
| Component | Concentration (wt.-%) |
| Demineralized water | 59.1 |
| Aluminum hydrochloride (50% solution) | 30.0 |
| Steareth-2 | 3.0 |
| Hydroxypropylic starch phosphate | 1.5 |
| Steareth-21 | 1.1 |
| Stearylic PPG-15 ether | 1.0 |
| Hydrogenated palm oil | 1.0 |
| Perfume | 1.0 |
| Pantenol | 1.0 |
| DMDM hydantoin | 0.6 |
| 2-methyl-5-cyclohexylpentanol | 0.4 |
| Silica dimethyl silicate | 0.15 |
| Disodium EDTA | 0.1 |
| BHT | 0.05 |
Table 4 below presents a formulation of the cosmetic composition according to the present invention in cream form.
| TABLE 4 | ||
| Component | Concentration (wt.-%) | |
| Demineralized water | 41.7 | |
| Aluminum hydrochloride | 30.0 | |
| Cetosterayl alcohol | 7.5 | |
| Olus oil | 3.8 | |
| Ceresin | 3.0 | |
| Cyclopentasyloxane | 2.5 | |
| Talc | 2.0 | |
| Hydroxypropylic starch phosphate | 2.0 | |
| Steareth-20 | 1.75 | |
| Pantenol | 1.5 | |
| Perfume | 1.1 | |
| Dicapryl carbonate | 1.0 | |
| Dimethiconol, cyclopentasiloxane | 1.0 | |
| DMDM hydantoin | 0.6 | |
| 2-methyl-5-cyclohexylpentanol | 0.4 | |
| Disodium EDTA | 0.1 | |
| BHT | 0.05 | |
Table 5 below presents a formulation of the cosmetic composition according to the present invention in cream form.
| TABLE 5 | ||
| Component | Concentration (wt.-%) | |
| Demineralized water | 45.5 | |
| Aluminum hydrochloride | 30.0 | |
| Cetosterayl alcohol | 7.5 | |
| Ceresin | 3.0 | |
| Cyclopentasiloxane | 2.5 | |
| Talc | 2.0 | |
| Hydroxypropylic starch phostate | 2.0 | |
| Ceteareth-20 | 1.75 | |
| Pantenol | 1.5 | |
| Perfume | 1.1 | |
| Dicapryl carbonate | 1.0 | |
| Dimethiconol, cyclopeontasiloxane | 1.0 | |
| DMDM hydantoin | 0.6 | |
| 2.-methyl-5-cyclohexylpoentanol | 0.4 | |
| Disodium EDTA | 0.1 | |
| BHT | 0.05 | |
Table 6 below presents a formulation of the cosmetic composition according to the present invention in cream form.
| TABLE 6 | ||
| Component | Concentration (wt.-%) | |
| Demineralized water | 44.5 | |
| Aluminum hydrochloride | 30.0 | |
| Cetostearyl alcohol | 7.5 | |
| Cerasin | 3.0 | |
| cyclopeontasiloxane | 2.5 | |
| Talc | 2.0 | |
| Hydroxypropylic starch phosphate | 2.0 | |
| Ceteareth-20 | 1.75 | |
| Pantenol | 1.5 | |
| Perfume | 1.1 | |
| Hydrogenated palm oil | 1.0 | |
| Dicapryl carbonate | 1.0 | |
| Dimethiconol, cyclopentasiloxane | 1.0 | |
| DMDM hydantoin | 0.6 | |
| 2-methyl-5-cydohexylpentanol | 0.4 | |
| Disodium EDTA | 0.1 | |
| BHT | 0.05 | |
The cosmetic composition of the present invention is prepared in a conventional way, known to those skilled in the art.
Tests:
Test 1โInstrumental Evaluation of the Effect of the Composition of the Invention (Called 13-39540-03) on Erythema Caused by the Tape-Stripping Technique.
Evaluating the potential of a calming action of a topical product referring to a composition according to the invention through instrumental measurements of colorimetry.
Two symmetrical 10 cm2 areas having randomized distribution in the front region of the forearms of the patients (a total of 21 participants) were demarcated. One of the areas was used for application of the product and the other was kept as control (untreated area). Colorimetric measurements were made with the equipment Mexameter MX18-Courge+Khazaka prior to tape-stripping removal (Fita Hipoalergรชnica TransproeMR) and application of the product (Tb) after 30 tape-stripping removals at each site (T0) and after 30 minutes, 1, 2, 3, 4, 5 and 6 hours from application of the product.
The measurements were carried out by using the equipment Mexameter MX 18, Courage+Khazaka electronic GmbH through a measurement probe. The readings were made by applying the probe to the test areas with the pressure permitted by the spring (0.5 N).
The measurement area was 5 mm in diameter. Three measurements were carried out in each area. The measurement consisted in measuring the light absorbed and reflected at the wavelengths for green and red for hemoglobin and wavelengths for green and near infrared for melanin.
The operator positioned the probe vertically, forming a 90-degree angle with the skin and cleaned the probe with the aid of a very soft piece of paper prior to the first reading and between the readings of one area an another, even if it were the control area or the initial measurement of each area.
The reading indicated the degree of erythema of the skin. The scale of the equipment is arbitrary, the reading values indicating greater redness of the skin (erythema).
For a statistical analysis of the results, different tests were employed, as follows:
In order to compare the treatments in each time, one used ANOVA, followed by the DUNNET test and to compare the times with regard to the initial time T0, one used the Student test t.
As said before, the number of participants of the research was 21 and all of them completed the study in question.
The trust level considered in the comparative analyses was of 96%.
| TABLE 7 |
| Measurements, descriptive statistics and results of the comparison |
| Participant of the | 13-39540-03 | Control | 13-39540-03 | Control |
| research | Tb | T0 | Tb | T0 | ฮ(T0 โ Tb) | ฮ(T0 โ Tb) |
| 001 | 242 | 352 | 265 | 358 | 110 | 93 |
| 002 | 343 | 493 | 363 | 478 | 150 | 115 |
| 003 | 333 | 454 | 317 | 423 | 121 | 106 |
| 004 | 251 | 385 | 272 | 399 | 134 | 127 |
| 005 | 240 | 480 | 280 | 451 | 240 | 171 |
| 006 | 451 | 551 | 395 | 465 | 100 | 70 |
| 007 | 361 | 479 | 366 | 459 | 118 | 93 |
| 008 | 342 | 450 | 354 | 448 | 108 | 94 |
| 009 | 298 | 456 | 323 | 391 | 158 | 68 |
| 010 | 357 | 452 | 401 | 467 | 95 | 66 |
| 011 | 343 | 430 | 374 | 407 | 87 | 33 |
| 012 | 276 | 299 | 264 | 323 | 23 | 59 |
| 013 | 337 | 432 | 368 | 455 | 95 | 87 |
| 014 | 362 | 452 | 346 | 448 | 90 | 102 |
| 015 | 284 | 377 | 335 | 407 | 93 | 72 |
| 017 | 312 | 477 | 316 | 405 | 165 | 89 |
| 018 | 234 | 412 | 242 | 376 | 178 | 134 |
| 019 | 282 | 357 | 306 | 374 | 75 | 68 |
| 020 | 304 | 458 | 266 | 455 | 154 | 189 |
| 021 | 267 | 360 | 267 | 336 | 93 | 69 |
| 022 | 285 | 365 | 248 | 309 | 80 | 61 |
| Average | 309.7 | 427.2 | 317.5 | 411.1 | 117.5 | 93.6 |
| Medium | 304.0 | 450.0 | 317.0 | 407.0 | 108.0 | 89.0 |
| Minimum | 234.0 | 299.0 | 242.0 | 309.0 | 23.0 | 33.0 |
| Maximum | 451.0 | 551.0 | 401.0 | 478.0 | 240.0 | 189.0 |
| Standard error | 11.5 | 13.1 | 11.0 | 11.0 | 10.0 | 8.2 |
| IC of 95% | [286.6; | [401.0; | [295.6; | [389.1; | [97.5; | [77.2; |
| 332.8] | 453.3] | 339.5] | 433.2] | 137.4] | 110.0] |
| ฮ (%) with respect to T0 | 37.9 | 29.5 |
| % of participants with irritating effect | 100.0 | 100.0 |
| P-Value | <0.001*** | <0.001*** |
| ***significant at level 0.1%; | ||
| **significant at level 1%; | ||
| *significant at level 5% (Student t test) |
The T0 was higher on average than the Tb for product and control.
| TABLE 8 |
| Measurements and descriptive statistics of the product |
| ฮ(T30- | |||||||||
| T30- | min โ | ||||||||
| Participant | T0 | min | T1 h | T2 h | T3 h | T4 h | T5 h | T6 h | T0) |
| 001 | 352 | 217 | 216 | 270 | 265 | 300 | 292 | 275 | โ135 |
| 002 | 493 | 308 | 345 | 376 | 409 | 392 | 395 | 402 | โ185 |
| 003 | 454 | 225 | 266 | 328 | 337 | 368 | 343 | 346 | โ229 |
| 004 | 385 | 224 | 251 | 225 | 251 | 281 | 254 | 248 | โ161 |
| 005 | 480 | 326 | 353 | 348 | 361 | 365 | 379 | 378 | โ154 |
| 006 | 551 | 437 | 451 | 471 | 458 | 495 | 492 | 484 | โ114 |
| 007 | 479 | 370 | 358 | 353 | 369 | 379 | 389 | 381 | โ109 |
| 008 | 450 | 313 | 288 | 301 | 322 | 347 | 340 | 351 | โ137 |
| 009 | 456 | 332 | 350 | 339 | 389 | 387 | 384 | 380 | โ124 |
| 010 | 452 | 359 | 332 | 358 | 338 | 358 | 340 | 361 | โ93 |
| 011 | 430 | 320 | 311 | 328 | 309 | 308 | 339 | 351 | โ110 |
| 012 | 299 | 263 | 275 | 235 | 280 | 263 | 289 | 276 | โ36 |
| 013 | 432 | 373 | 358 | 353 | 380 | 382 | 376 | 360 | โ59 |
| 014 | 452 | 344 | 352 | 368 | 358 | 356 | 361 | 364 | โ108 |
| 015 | 377 | 278 | 273 | 279 | 300 | 309 | 311 | 323 | โ99 |
| 017 | 477 | 320 | 347 | 372 | 377 | 400 | 394 | 376 | โ157 |
| 018 | 412 | 240 | 240 | 266 | 257 | 265 | 278 | 264 | โ172 |
| 019 | 357 | 244 | 248 | 270 | 270 | 264 | 283 | 290 | โ113 |
| 020 | 458 | 393 | 366 | 401 | 398 | 407 | 442 | 401 | โ65 |
| 021 | 360 | 254 | 293 | 282 | 305 | 326 | 307 | 337 | โ106 |
| 022 | 365 | 305 | 277 | 287 | 292 | 252 | 274 | 280 | โ60 |
| Average | 427.2 | 306.9 | 311.9 | 324.3 | 334.5 | 343.0 | 345.8 | 344.2 | โ120.3 |
| Medium | 450.0 | 313.0 | 311.0 | 328.0 | 337.0 | 356.0 | 340.0 | 351.0 | โ113.0 |
| Minimum | 299.0 | 217.0 | 216.0 | 225.0 | 251.0 | 252.0 | 254.0 | 248.0 | โ229.0 |
| Maximum | 551.0 | 437.0 | 451.0 | 471.0 | 458.0 | 495.0 | 492.0 | 484.0 | โ36.0 |
| Standard | 13.1 | 13.3 | 12.3 | 13.0 | 12.3 | 13.3 | 13.1 | 12.4 | 10.1 |
| error | |||||||||
| IC de | [401.0; | [280.4; | [287.4; | [298.3; | [309.9; | [316.4; | [319.6; | [319.4; | [โ140.5; |
| 95% | 453.3] | 333.4] | 336.5] | 350.2] | 359.2] | 369.7] | 372.0] | 369.0] | โ100.1] |
| ฮ (%) with respect to the T0 | โ28.2 |
| ฮ(T1 h โ | ฮ(T2 h โ | ฮ(T3 h โ | ฮ(T4 h โ | ฮ(T5 h โ | ฮ(T6 h โ | ||
| Participant | T0) | T0) | T0) | T0) | T0) | T0) | |
| 001 | โ136 | โ82 | โ87 | โ52 | โ60 | โ77 | |
| 002 | โ148 | โ117 | โ84 | โ101 | โ98 | โ91 | |
| 003 | โ188 | โ126 | โ117 | โ86 | โ111 | โ108 | |
| 004 | โ134 | โ160 | โ134 | โ104 | โ131 | โ137 | |
| 005 | โ127 | โ132 | โ119 | โ115 | โ101 | โ102 | |
| 006 | โ100 | โ80 | โ93 | โ56 | โ59 | โ67 | |
| 007 | โ121 | โ126 | โ110 | โ100 | โ90 | โ98 | |
| 008 | โ162 | โ149 | โ128 | โ103 | โ110 | โ99 | |
| 009 | โ106 | โ117 | โ67 | โ69 | โ72 | โ76 | |
| 010 | โ120 | โ94 | โ114 | โ94 | โ112 | โ91 | |
| 011 | โ119 | โ102 | โ121 | โ122 | โ91 | โ79 | |
| 012 | โ24 | โ64 | โ19 | โ36 | โ10 | โ23 | |
| 013 | โ74 | โ79 | โ52 | โ50 | โ56 | โ72 | |
| 014 | โ100 | โ84 | โ94 | โ96 | โ91 | โ88 | |
| 015 | โ104 | โ98 | โ77 | โ68 | โ66 | โ54 | |
| 017 | โ130 | โ105 | โ100 | โ77 | โ83 | โ101 | |
| 018 | โ172 | โ146 | โ155 | โ147 | โ134 | โ148 | |
| 019 | โ109 | โ87 | โ87 | โ93 | โ74 | โ67 | |
| 020 | โ92 | โ57 | โ60 | โ51 | โ16 | โ57 | |
| 021 | โ67 | โ78 | โ55 | โ34 | โ53 | โ23 | |
| 022 | โ88 | โ78 | โ73 | โ113 | โ91 | โ85 | |
| Average | โ115.3 | โ102.9 | โ92.7 | โ84.1 | โ81.4 | โ83.0 | |
| Medium | โ119.0 | โ98.0 | โ93.0 | โ93.0 | โ90.0 | โ85.0 | |
| Minimum | โ188.0 | โ160.0 | โ155.0 | โ147.0 | โ134.0 | โ148.0 | |
| Maximum | โ24.0 | โ57.0 | โ19.0 | โ34.0 | โ10.0 | โ23.0 | |
| Standard | 8.1 | 6.3 | 7.0 | 6.6 | 7.1 | 6.6 | |
| error | |||||||
| IC de | [โ131.4; | [โ115.5; | [โ106.7; | [โ97.3; | [โ95.5; | [โ96.3; | |
| 95% | โ99.2] | โ90.3] | โ78.6] | โ71.0] | โ67.2] | โ69.7] |
| ฮ (%) with | โ27.0 | โ24.1 | โ21.7 | โ19.7 | โ19.1 | โ19.4 | |
| respect to | |||||||
| the T0 | |||||||
| TABLE 9 |
| Descriptive measurements and statistics of the control |
| ฮ(T30- | |||||||||
| T30- | min โ | ||||||||
| Participant | T0 | min | T1 h | T2 h | T3 h | T4 h | T5 h | T6 h | T0) |
| 001 | 358 | 261 | 281 | 290 | 320 | 332 | 335 | 346 | โ97 |
| 002 | 478 | 397 | 429 | 399 | 421 | 413 | 422 | 433 | โ81 |
| 003 | 423 | 289 | 328 | 319 | 321 | 346 | 331 | 332 | โ134 |
| 004 | 399 | 231 | 266 | 261 | 268 | 293 | 277 | 286 | โ168 |
| 005 | 451 | 349 | 344 | 349 | 392 | 346 | 366 | 361 | โ102 |
| 006 | 465 | 416 | 411 | 391 | 402 | 406 | 399 | 389 | โ49 |
| 007 | 459 | 387 | 372 | 351 | 356 | 375 | 384 | 367 | โ72 |
| 008 | 448 | 356 | 334 | 344 | 346 | 377 | 359 | 367 | โ92 |
| 009 | 391 | 356 | 361 | 343 | 354 | 365 | 361 | 364 | โ35 |
| 010 | 467 | 393 | 382 | 385 | 375 | 428 | 394 | 379 | โ74 |
| 011 | 407 | 347 | 334 | 331 | 352 | 353 | 364 | 360 | โ60 |
| 012 | 323 | 270 | 275 | 235 | 259 | 250 | 260 | 270 | โ53 |
| 013 | 455 | 437 | 425 | 405 | 429 | 422 | 403 | 416 | โ18 |
| 014 | 448 | 363 | 354 | 380 | 386 | 389 | 375 | 371 | โ85 |
| 015 | 407 | 328 | 336 | 323 | 324 | 344 | 331 | 349 | โ79 |
| 017 | 405 | 293 | 316 | 332 | 340 | 352 | 338 | 353 | โ112 |
| 018 | 376 | 217 | 219 | 240 | 269 | 277 | 282 | 257 | โ159 |
| 019 | 374 | 272 | 291 | 276 | 289 | 284 | 304 | 295 | โ102 |
| 020 | 455 | 365 | 346 | 326 | 324 | 349 | 347 | 350 | โ90 |
| 021 | 336 | 267 | 258 | 275 | 297 | 302 | 302 | 328 | โ69 |
| 022 | 309 | 278 | 260 | 247 | 240 | 226 | 203 | 223 | โ31 |
| Average | 411.1 | 327.2 | 329.6 | 323.9 | 336.4 | 344.2 | 339.9 | 342.7 | โ83.9 |
| Medium | 407.0 | 347.0 | 334.0 | 331.0 | 340.0 | 349.0 | 347.0 | 353.0 | โ81.0 |
| Minimum | 309.0 | 217.0 | 219.0 | 235.0 | 240.0 | 226.0 | 203.0 | 223.0 | โ168.0 |
| Maximum | 478.0 | 437.0 | 429.0 | 405.0 | 429.0 | 428.0 | 422.0 | 433.0 | โ18.0 |
| Standard | 11.0 | 13.7 | 12.5 | 11.6 | 11.7 | 12.1 | 11.7 | 11.2 | 8.4 |
| error | |||||||||
| IC of | [389.1; | [299.9; | [304.6; | [300.7; | [313.0; | [320; | [316.4; | [320.2; | [โ100.7; |
| 95% | 433.2] | 354.6] | 354.6] | 347.1] | 359.7] | 368.5] | 363.3] | 365.1] | โ67.1] |
| ฮ (%) em relaรงรฃo ao T0 | โ20.4 |
| ฮ(T1 h โ | ฮ(T2 h โ | ฮ(T3 h โ | ฮ(T4 h โ | ฮ(T5 h โ | ฮ(T6 h โ | ||
| Participant | T0) | T0) | T0) | T0) | T0) | T0) | |
| 001 | โ77 | โ68 | โ38 | โ26 | โ23 | โ12 | |
| 002 | โ49 | โ79 | โ57 | โ65 | โ56 | โ45 | |
| 003 | โ95 | โ104 | โ102 | โ77 | โ92 | โ91 | |
| 004 | โ133 | โ138 | โ131 | โ106 | โ122 | โ113 | |
| 005 | โ107 | โ102 | โ59 | โ105 | โ85 | โ90 | |
| 006 | โ54 | โ74 | โ63 | โ59 | โ66 | โ76 | |
| 007 | โ87 | โ108 | โ103 | โ84 | โ75 | โ92 | |
| 008 | โ114 | โ104 | โ102 | โ71 | โ89 | โ81 | |
| 009 | โ30 | โ48 | โ37 | โ26 | โ30 | โ27 | |
| 010 | โ85 | โ82 | โ92 | โ39 | โ73 | โ88 | |
| 011 | โ73 | โ76 | โ55 | โ54 | โ43 | โ47 | |
| 012 | โ48 | โ88 | โ64 | โ73 | โ63 | โ53 | |
| 013 | โ30 | โ50 | โ26 | โ33 | โ52 | โ39 | |
| 014 | โ94 | โ68 | โ62 | โ59 | โ73 | โ77 | |
| 015 | โ71 | โ84 | โ83 | โ63 | โ76 | โ58 | |
| 017 | โ89 | โ73 | โ65 | โ53 | โ67 | โ52 | |
| 018 | โ157 | โ136 | โ107 | โ99 | โ94 | โ119 | |
| 019 | โ83 | โ98 | โ85 | โ90 | โ70 | โ79 | |
| 020 | โ109 | โ129 | โ131 | โ106 | โ108 | โ105 | |
| 021 | โ78 | โ61 | โ39 | โ34 | โ34 | โ8 | |
| 022 | โ49 | โ62 | โ69 | โ83 | โ106 | โ86 | |
| Average | โ81.5 | โ87.2 | โ74.8 | โ66.9 | โ71.3 | โ68.5 | |
| Medium | โ83.0 | โ82.0 | โ65.0 | โ65.0 | โ73.0 | โ77.0 | |
| Minimum | โ157.0 | โ138.0 | โ131.0 | โ106.0 | โ122.0 | โ119.0 | |
| Maximum | โ30.0 | โ48.0 | โ26.0 | โ26.0 | โ23.0 | โ8.0 | |
| Standard | 7.0 | 5.7 | 6.6 | 5.7 | 5.7 | 6.8 | |
| error | |||||||
| IC of | [โ95.6; | [โ98.6; | [โ87.9; | [โ78.3; | [โ82.7; | [โ82.1; | |
| 95% | โ67.5] | โ75.8] | โ61.7] | โ55.5] | โ59.9] | โ54.8] |
| ฮ (%) em | โ19.8 | โ21.2 | โ18.2 | โ16.3 | โ17.3 | โ16.7 | |
| relaรงรฃo | |||||||
| ao T0 | |||||||
| TABLE 10 |
| Average and standard error of each treatment per time, and the difference |
| between the treatments |
| Product | Control | Product โ Control |
| Time | Average | E.P. | Average | E.P. | Average | E.P. |
| T0 | 427.19 | 13.08 | 411.14 | 11.02 | 16.05 | 7.26 | |
| T30 | min | 306.90 | 13.26 | 327.24 | 13.69 | โ20.33 | 7.17 |
| T1 | h | 311.90 | 12.28 | 329.62 | 12.49 | โ17.71 | 8.39 |
| T2 | h | 324.29 | 12.98 | 323.90 | 11.60 | 0.38 | 7.82 |
| T3 | h | 334.52 | 12.32 | 336.38 | 11.67 | โ1.86 | 8.05 |
| T4 | h | 343.05 | 13.32 | 344.24 | 12.13 | โ1.19 | 8.48 |
| T5 | h | 345.81 | 13.10 | 339.86 | 11.73 | 5.95 | 9.21 |
| T6 | h | 344.19 | 12.40 | 342.67 | 11.24 | 1.52 | 8.23 |
| TABLE 11 |
| Porcentage of variation on the average with respect to the time T0, |
| and percentage of participants with positive and negative effect |
| Product - Control |
| % of variation | % of participants | % of participants | |
| with respect | with positive | with negative |
| Time | to the T0 | effect | effect |
| T30 | min | โ7.7 | 85.7 | 14.3 |
| T1 | h | โ7.2 | 85.7 | 14.3 |
| T2 | h | โ2.9 | 85.7 | 14.3 |
| T3 | h | โ3.5 | 85.7 | 14.3 |
| T4 | h | โ3.4 | 76.2 | 19.0 |
| T5 | h | โ1.7 | 76.2 | 23.8 |
| T6 | h | โ2.8 | 71.4 | 28.6 |
The product exhibited greater reduction with respect to the T0 in the average values of erythema compared with the control in the times T30min (p-value <0.0001), T1h (p-value=0.0001), T2h (p-value=0.0155), T3h (p-value=0.0253) and T4h (p-value=0.0163). No significant differences were found between the product and the control in the times T5h (p-value=0.2834) and T6h (p-value=0.0528).
The times T30min, T1h, T2h, T3h, T4h, T5h and T6h were lower than the time T0 for the product (p-values <0.001).
cm2: square centimeters;
g: grams;
h: hours;
no.: number;
ยฐ C.: degrees Centigrade;
Tx: time after x hours of application of the product.
After the statistical analysis of the results, one can conclude that the composition of the invention promoted reduction of the erythema caused by the tape-stripping technique until the time of 4 hours.
Test 2โInstrumental Evaluation of the Effect of the Composition of the Invention (Called 13-29540-04) on the Erythema Caused by the Tape-Stripping Technique
Evaluating the potential of calming action of a topical product referring to a composition according to the invention through instrumental colorimetric measurement.
Two symmetric 10 cm2 areas of randomized distribution in the region before the forearms of the participants (a total of 21 participants) were demarcated. One of the areas was used for application of the product and the other was kept as control (untreated area). Colorimetric measurements were made with the equipment Mexameter MX18-Courage+Khazaka before tape-stripping removal (Fita Hipoalergรชn TransporeMR) and application of the product (Tb), after the 30 tape-stripping removals at each site (T0) and after 30 minutes, 1, 2, 3, 4, 5 and 6 hours of application of the product.
The measurements were carried out by using the equipment Mexameter MX 18, Courage+Khazaka electronic GmbH through a measurement probe. The readings were made by applying the probe to the test areas with the pressure permitted by the spring (0.5 N).
The measurement area was 5 mm in diameter. Three measurements were carried out in each area. The measurement consisted in measuring the light absorbed and reflected at the wavelengths for green and red for hemoglobin and wavelengths for green and near infrared for melanin.
The operator positioned the probe vertically, forming a 90-degree angle with the skin and cleaned the probe with the aid of a very soft piece of paper prior to the first reading and between the readings of one area an another, even if it were the control area or the initial measurement of each area.
The reading indicated the degree of erythema of the skin. The scale of the equipment is arbitrary, the reading values indicating greater redness of the skin (erythema).
For a statistical analysis of the results, different tests were employed, as follows:
In order to compare the treatments in each time, one used ANOVA, followed by the DUNNET test and to compare the times with regard to the initial time T0, one used the Student test t.
As said before, the number of participants of the research was 21 and all of them completed the study in question.
The trust level considered in the comparative analyses was of 96%.
| TABLE 12 |
| Measurements, descriptive statistics and results of the comparison |
| Participant |
| of the | 13-39540-04 | Control | 13-39540-04 | Control |
| research | Tb | T0 | Tb | T0 | ฮ(T0 โ Tb) | ฮ(T0 โ Tb) |
| 001 | 279 | 374 | 265 | 358 | 95 | 93 |
| 002 | 300 | 426 | 363 | 478 | 126 | 115 |
| 003 | 303 | 428 | 317 | 423 | 125 | 106 |
| 004 | 264 | 395 | 272 | 399 | 131 | 127 |
| 005 | 236 | 412 | 280 | 451 | 176 | 171 |
| 006 | 403 | 505 | 395 | 465 | 102 | 70 |
| 007 | 403 | 484 | 366 | 459 | 81 | 93 |
| 008 | 358 | 442 | 354 | 448 | 84 | 94 |
| 009 | 309 | 428 | 323 | 391 | 119 | 68 |
| 010 | 383 | 459 | 401 | 467 | 76 | 66 |
| 011 | 350 | 417 | 374 | 407 | 67 | 33 |
| 012 | 313 | 389 | 264 | 323 | 76 | 59 |
| 013 | 360 | 407 | 368 | 455 | 47 | 87 |
| 014 | 326 | 388 | 346 | 448 | 62 | 102 |
| 015 | 302 | 398 | 335 | 407 | 96 | 72 |
| 017 | 304 | 344 | 316 | 405 | 40 | 89 |
| 018 | 244 | 423 | 242 | 376 | 179 | 134 |
| 019 | 279 | 383 | 306 | 374 | 104 | 68 |
| 020 | 306 | 410 | 266 | 455 | 104 | 189 |
| 021 | 220 | 371 | 267 | 336 | 151 | 69 |
| 022 | 270 | 301 | 248 | 309 | 31 | 61 |
| Average | 310.1 | 408.8 | 317.5 | 411.1 | 98.7 | 93.6 |
| Medium | 304.0 | 410.0 | 317.0 | 407.0 | 96.0 | 89.0 |
| Minimum | 220.0 | 301.0 | 242.0 | 309.0 | 31.0 | 33.0 |
| Maximum | 403.0 | 505.0 | 401.0 | 478.0 | 179.0 | 189.0 |
| Standard | 11.2 | 9.8 | 11.0 | 11.0 | 8.8 | 8.2 |
| error | ||||||
| IC of 95% | [287.6; 332.6] | [389.2; 428.3] | [295.6; 339.5] | [389.1; 433.2] | [81.0; 116.3] | [77.2; 110.0] |
| ฮ(%) with respect to the T0 | 31.8 | 29.5 |
| % of participants with irritating effect | 100.0 | 100.0 |
| P-Value | <0.001*** | <0.001*** |
| ***significant at level 0.1%; | ||
| **significant at level 1%; | ||
| *significant at level 5% (t-Student test). |
| TABLE 13 |
| Measurements and descriptive statistics of the product |
| Partici- | T30- | |||||||
| pant | T0 | min | T1 h | T2 h | T3 h | T4 h | T5 h | T6 h |
| 001 | 374 | 235 | 257 | 280 | 295 | 334 | 331 | 346 |
| 002 | 426 | 284 | 263 | 323 | 341 | 328 | 347 | 331 |
| 003 | 428 | 234 | 266 | 276 | 314 | 340 | 328 | 317 |
| 004 | 395 | 246 | 276 | 267 | 270 | 295 | 293 | 290 |
| 005 | 412 | 263 | 273 | 307 | 298 | 304 | 285 | 289 |
| 006 | 505 | 380 | 390 | 408 | 423 | 441 | 424 | 428 |
| 007 | 484 | 391 | 388 | 380 | 385 | 389 | 398 | 394 |
| 008 | 442 | 312 | 304 | 275 | 313 | 319 | 321 | 332 |
| 009 | 428 | 321 | 336 | 331 | 353 | 401 | 344 | 371 |
| 010 | 459 | 369 | 375 | 388 | 392 | 416 | 417 | 386 |
| 011 | 417 | 355 | 323 | 335 | 350 | 350 | 386 | 353 |
| 012 | 389 | 324 | 305 | 295 | 294 | 311 | 290 | 306 |
| 013 | 407 | 362 | 373 | 342 | 390 | 371 | 354 | 378 |
| 014 | 388 | 292 | 315 | 330 | 319 | 317 | 297 | 306 |
| 015 | 398 | 300 | 311 | 309 | 314 | 332 | 311 | 313 |
| 017 | 344 | 257 | 282 | 280 | 307 | 321 | 303 | 311 |
| 018 | 423 | 260 | 264 | 283 | 284 | 300 | 290 | 290 |
| 019 | 383 | 254 | 259 | 258 | 275 | 280 | 294 | 275 |
| 020 | 410 | 345 | 317 | 312 | 359 | 348 | 335 | 349 |
| 021 | 371 | 226 | 244 | 264 | 270 | 260 | 271 | 284 |
| 022 | 301 | 251 | 244 | 245 | 251 | 222 | 213 | 227 |
| Average | 408.8 | 298.1 | 303.1 | 309.0 | 323.7 | 332.3 | 325.3 | 327.4 |
| Medium | 410.0 | 292.0 | 304.0 | 307.0 | 314.0 | 328.0 | 321.0 | 317.0 |
| Minimum | 301.0 | 226.0 | 244.0 | 245.0 | 251.0 | 222.0 | 213.0 | 227.0 |
| Maximum | 505.0 | 391.0 | 390.0 | 408.0 | 423.0 | 441.0 | 424.0 | 428.0 |
| Standard | 9.8 | 11.6 | 10.3 | 9.7 | 10.2 | 11.3 | 11.1 | 10.3 |
| error | ||||||||
| IC of 95% | [389.2; 428.3] | [275.0; 321.2] | [282.5; 323.6] | [289.6; 328.3] | [303.3; 344.1] | [309.8; 354.9] | [303.1; 347.6] | [306.9; 348.0] |
| ฮ(%) em relaรงรฃo ao T0 |
| ฮ(T30- | ฮ | ฮ | ฮ | ฮ | ฮ | ฮ | ||
| Partici- | min โ | (T1 h โ | (T2 h โ | (T3 h โ | (T4 h โ | (T5 h โ | (T6 h โ | |
| pant | T0) | T0) | T0) | T0) | T0) | T0) | T0) | |
| 001 | โ139 | โ117 | โ94 | โ79 | โ40 | โ43 | โ28 | |
| 002 | โ142 | โ163 | โ103 | โ85 | โ98 | โ79 | โ95 | |
| 003 | โ194 | โ162 | โ152 | โ114 | โ88 | โ100 | โ111 | |
| 004 | โ149 | โ119 | โ128 | โ125 | โ100 | โ102 | โ105 | |
| 005 | โ149 | โ139 | โ105 | โ114 | โ108 | โ127 | โ123 | |
| 006 | โ125 | โ115 | โ97 | โ82 | โ64 | โ81 | โ77 | |
| 007 | โ93 | โ96 | โ104 | โ99 | โ95 | โ86 | โ90 | |
| 008 | โ130 | โ138 | โ167 | โ129 | โ123 | โ121 | โ110 | |
| 009 | โ107 | โ92 | โ97 | โ75 | โ27 | โ84 | โ57 | |
| 010 | โ90 | โ84 | โ71 | โ67 | โ43 | โ42 | โ73 | |
| 011 | โ62 | โ94 | โ82 | โ67 | โ67 | โ31 | โ64 | |
| 012 | โ65 | โ84 | โ94 | โ95 | โ78 | โ99 | โ83 | |
| 013 | โ45 | โ34 | โ65 | โ17 | โ36 | โ53 | โ29 | |
| 014 | โ96 | โ73 | โ58 | โ69 | โ71 | โ91 | โ82 | |
| 015 | โ98 | โ87 | โ89 | โ84 | โ66 | โ87 | โ85 | |
| 017 | โ87 | โ62 | โ64 | โ37 | โ23 | โ41 | โ33 | |
| 018 | โ163 | โ159 | โ140 | โ139 | โ123 | โ133 | โ133 | |
| 019 | โ129 | โ124 | โ125 | โ108 | โ103 | โ89 | โ108 | |
| 020 | โ65 | โ93 | โ98 | โ51 | โ62 | โ75 | โ61 | |
| 021 | โ145 | โ127 | โ107 | โ101 | โ111 | โ100 | โ87 | |
| 022 | โ50 | โ57 | โ56 | โ50 | โ79 | โ88 | โ74 | |
| Average | โ110.6 | โ105.7 | โ99.8 | โ85.1 | โ76.4 | โ83.4 | โ81.3 | |
| Medium | โ107.0 | โ96.0 | โ97.0 | โ84.0 | โ78.0 | โ87.0 | โ83.0 | |
| Minimum | โ194.0 | โ163.0 | โ167.0 | โ139.0 | โ123.0 | โ133.0 | โ133.0 | |
| Maximum | โ45.0 | โ34.0 | โ56.0 | โ17.0 | โ23.0 | โ31.0 | โ28.0 | |
| Standard | 8.8 | 7.7 | 6.5 | 6.8 | 6.7 | 6.2 | 6.4 | |
| error | ||||||||
| IC of 95% | [โ128.3; โ93.0] | [โ121.1; โ90.2] | [โ112.9; โ86.8] | [โ98.7; โ71.4] | [โ89.8; โ63.1] | [โ95.8; โ71.1] | [โ94.1; โ68.6] | |
| ฮ(%) em | โ27.1 | โ25.9 | โ24.4 | โ20.8 | โ18.7 | โ20.4 | โ19.9 | |
| relaรงรฃo | ||||||||
| ao T0 | ||||||||
| TABLE 14 |
| Measurements and descriptive statistics of the control |
| Partici- | T30- | |||||||
| pant | T0 | min | T1 h | T2 h | T3 h | T4 h | T5 h | T6 h |
| 001 | 358 | 261 | 281 | 290 | 320 | 332 | 335 | 346 |
| 002 | 478 | 397 | 429 | 399 | 421 | 413 | 422 | 433 |
| 003 | 423 | 289 | 328 | 319 | 321 | 346 | 331 | 332 |
| 004 | 399 | 231 | 266 | 261 | 268 | 293 | 277 | 286 |
| 005 | 451 | 349 | 344 | 349 | 392 | 346 | 366 | 361 |
| 006 | 465 | 416 | 411 | 391 | 402 | 406 | 399 | 389 |
| 007 | 459 | 387 | 372 | 351 | 356 | 375 | 384 | 367 |
| 008 | 448 | 356 | 334 | 344 | 346 | 377 | 359 | 367 |
| 009 | 391 | 356 | 361 | 343 | 354 | 365 | 361 | 364 |
| 010 | 467 | 393 | 382 | 385 | 375 | 428 | 394 | 379 |
| 011 | 407 | 347 | 334 | 331 | 352 | 353 | 364 | 360 |
| 012 | 323 | 270 | 275 | 235 | 259 | 250 | 260 | 270 |
| 013 | 455 | 437 | 425 | 405 | 429 | 422 | 403 | 416 |
| 014 | 448 | 363 | 354 | 380 | 386 | 389 | 375 | 371 |
| 015 | 407 | 328 | 336 | 323 | 324 | 344 | 331 | 349 |
| 017 | 405 | 293 | 316 | 332 | 340 | 352 | 338 | 353 |
| 018 | 376 | 217 | 219 | 240 | 269 | 277 | 282 | 257 |
| 019 | 374 | 272 | 291 | 276 | 289 | 284 | 304 | 295 |
| 020 | 455 | 365 | 346 | 326 | 324 | 349 | 347 | 350 |
| 021 | 336 | 267 | 258 | 275 | 297 | 302 | 302 | 328 |
| 022 | 309 | 278 | 260 | 247 | 240 | 226 | 203 | 223 |
| Average | 411.1 | 327.2 | 329.6 | 323.9 | 336.4 | 344.2 | 339.9 | 342.7 |
| Medium | 407.0 | 347.0 | 334.0 | 331.0 | 340.0 | 349.0 | 347.0 | 353.0 |
| Minimum | 309.0 | 217.0 | 219.0 | 235.0 | 240.0 | 226.0 | 203.0 | 223.0 |
| Maximum | 478.0 | 437.0 | 429.0 | 405.0 | 429.0 | 428.0 | 422.0 | 433.0 |
| Standard | 11.0 | 13.7 | 12.5 | 11.6 | 11.7 | 12.1 | 11.7 | 11.2 |
| error | ||||||||
| IC of 95% | [389.1; 433.2] | [299.9; 354.6] | [304.6; 354.6] | [300.7; 347.1] | [313.0; 359.7] | [320; 368.5] | [316.4; 363.3] | [320.2; 365.1] |
| ฮ(%) wtih respect to the T0 |
| ฮ(T30- | ฮ | ฮ | ฮ | ฮ | ฮ | ฮ | ||
| Partici- | min โ | (T1 h โ | (T2 h โ | (T3 h โ | (T4 h โ | (T5 h โ | (T6 h โ | |
| pant | T0) | T0) | T0) | T0) | T0) | T0) | T0) | |
| 001 | โ97 | โ77 | โ68 | โ38 | โ26 | โ23 | โ12 | |
| 002 | โ81 | โ49 | โ79 | โ57 | โ65 | โ56 | โ45 | |
| 003 | โ134 | โ95 | โ104 | โ102 | โ77 | โ92 | โ91 | |
| 004 | โ168 | โ133 | โ138 | โ131 | โ106 | โ122 | โ113 | |
| 005 | โ102 | โ107 | โ102 | โ59 | โ105 | โ85 | โ90 | |
| 006 | โ49 | โ54 | โ74 | โ63 | โ59 | โ66 | โ76 | |
| 007 | โ72 | โ87 | โ108 | โ103 | โ84 | โ75 | โ92 | |
| 008 | โ92 | โ114 | โ104 | โ102 | โ71 | โ89 | โ81 | |
| 009 | โ35 | โ30 | โ48 | โ37 | โ26 | โ30 | โ27 | |
| 010 | โ74 | โ85 | โ82 | โ92 | โ39 | โ73 | โ88 | |
| 011 | โ60 | โ73 | โ76 | โ55 | โ54 | โ43 | โ47 | |
| 012 | โ53 | โ48 | โ88 | โ64 | โ73 | โ63 | โ53 | |
| 013 | โ18 | โ30 | โ50 | โ26 | โ33 | โ52 | โ39 | |
| 014 | โ85 | โ94 | โ68 | โ62 | โ59 | โ73 | โ77 | |
| 015 | โ79 | โ71 | โ84 | โ83 | โ63 | โ76 | โ58 | |
| 017 | โ112 | โ89 | โ73 | โ65 | โ53 | โ67 | โ52 | |
| 018 | โ159 | โ157 | โ136 | โ107 | โ99 | โ94 | โ119 | |
| 019 | โ102 | โ83 | โ98 | โ85 | โ90 | โ70 | โ79 | |
| 020 | โ90 | โ109 | โ129 | โ131 | โ106 | โ108 | โ105 | |
| 021 | โ69 | โ78 | โ61 | โ39 | โ34 | โ34 | โ8 | |
| 022 | โ31 | โ49 | โ62 | โ69 | โ83 | โ106 | โ86 | |
| Average | โ83.9 | โ81.5 | โ87.2 | โ74.8 | โ66.9 | โ71.3 | โ68.5 | |
| Medium | โ81.0 | โ83.0 | โ82.0 | โ65.0 | โ65.0 | โ73.0 | โ77.0 | |
| Minimum | โ168.0 | โ157.0 | โ138.0 | โ131.0 | โ106.0 | โ122.0 | โ119.0 | |
| Maximum | โ18.0 | โ30.0 | โ48.0 | โ26.0 | โ26.0 | โ23.0 | โ8.0 | |
| Standard | 8.4 | 7.0 | 5.7 | 6.6 | 5.7 | 5.7 | 6.8 | |
| error | ||||||||
| IC of 95% | [โ100.7; โ67.1] | [โ95.6; โ67.5] | [โ98.6; โ75.8] | [โ87.9; โ61.7] | [โ78.3; โ55.5] | [โ82.7; โ59.9] | [โ82.1; โ54.8] | |
| ฮ(%) wtih | โ20.4 | โ19.8 | โ21.2 | โ18.2 | โ16.3 | โ17.3 | โ16.7 | |
| respect | ||||||||
| to the T0 | ||||||||
| TABLE 15 |
| Average and standard error of each treatment per time and the difference |
| between the treatments |
| Product | Control | Product โ Cotrol |
| Time | Average | E.P. | Average | E.P. | Average | E.P. |
| T0 | 408.76 | 9.77 | 411.14 | 11.02 | โ2.38 | 8.14 | |
| T30 | min | 298.14 | 11.55 | 327.24 | 13.69 | โ29.10 | 8.74 |
| T1 | h | 303.10 | 10.28 | 329.62 | 12.49 | โ26.52 | 9.26 |
| T2 | h | 308.95 | 9.67 | 323.90 | 11.60 | โ14.95 | 7.92 |
| T3 | h | 323.67 | 10.21 | 336.38 | 11.67 | โ12.71 | 7.88 |
| T4 | h | 332.33 | 11.26 | 344.24 | 12.13 | โ11.90 | 8.05 |
| T5 | h | 325.33 | 11.14 | 339.86 | 11.73 | โ14.52 | 7.56 |
| T6 | h | 327.43 | 10.29 | 342.67 | 11.24 | โ15.24 | 8.17 |
| TABLE 16 |
| Porcentage of variation on the average with respect to the time T0, |
| and percentage of participants with positive and negative effect |
| Product - Control |
| % of variation | % of subjects | % of subjects | |
| with respect | with positive | with negative |
| Time | to the T0 | effect | effect |
| T30 | min | โ6.7 | 85.7 | 14.3 |
| T1 | h | โ6.0 | 76.2 | 23.8 |
| T2 | h | โ3.2 | 66.7 | 33.3 |
| T3 | h | โ2.6 | 66.7 | 33.3 |
| T4 | h | โ2.4 | 81.0 | 19.0 |
| T5 | h | โ3.1 | 71.4 | 28.6 |
| T6 | h | โ3.2 | 66.7 | 33.3 |
The product exhibited greater reduction with respect to the T0 in the average values of erythema compared with the control in the times T30min (p-value=0.0004) and T1h (p-value=0.0031). No significant differences were found between product and control in the times T2h (p-value=0.0571), T3h (p-value=o.0571), T3h (p-value=0.2448), T4h (p-value=0.2311), T5h (p-value=0.1731) and T6h (p-value=0.0925).
The times T30min, T1h, T2h, T3h, T4h, T5h and T6h were lower that the T0 for the product (p-values <0.001);
wherein:
cm2: square centimeters;
g: grams;
h: hours;
no.: number;
ยฐ C.: degrees Centigrade;
Tx: Time after x hours of application of the product.
After a statistic analysis of the results, one can conclude that the composition of the invention promoted reduction of the erythema caused by the tape-stripping technique until the time of 1 hour.
Test 3โInstrumental Evaluation of the Effect of the Composition of the Invention (Called 13-39540-01) on the Erythema Caused by the Tape-Stripping Technique
Evaluating the potential of a calming action of a topical product referring to a composition according to the invention through instrumental measurements of colorimetry.
3.2โMethodology. Materials and Equipment
Two symmetrical 10 cm2 areas having randomized distribution in the front region of the forearms of the patients (a total of 21 participants) were demarcated. One of the areas was used for application of the product and the other was kept as control (untreated area). Colorimetric measurements were made with the equipment Mexameter MX18-Couage+Khazaka prior to tape-stripping removal (Fita Hipoalergรชnica TransproeMR) and application of the product (Tb) after 30 tape-stripping removals at each site (T0) and after 30 minutes, 1, 2, 3, 4, 5 and 6 hours from application of the product.
The measurements were carried out by using the equipment Mexameter MX 18, Courage+Khazaka electronic GmbH through a measurement probe. The readings were made by applying the probe to the test areas with the pressure permitted by the spring (0.5 N).
The measurement area was 5 mm in diameter. Three measurements were carried out in each area. The measurement consisted in measuring the light absorbed and reflected at the wavelengths for green and red for hemoglobin and wavelengths for green and near infrared for melanin.
The operator positioned the probe vertically, forming a 90-degree angle with the skin and cleaned the probe with the aid of a very soft piece of paper prior to the first reading and between the readings of one area an another, even if it were the control area or the initial measurement of each area.
The reading indicated the degree of erythema of the skin. The scale of the equipment is arbitrary, the reading values indicating greater redness of the skin (erythema).
For a statistical analysis of the results, different tests were employed, as follows:
In order to compare the treatments in each time, one used ANOVA, followed by the DUNNET test and to compare the times with regard to the initial time T0, one used the Student test t.
As said before, the number of participants of the research was 21 and all of them completed the study in question.
The trust level considered in the comparative analyses was of 96%.
| TABLE 17 |
| Measurements, descriptive statistics and results of the comparison |
| Participant da | 13-39540-01 | Control | 13-39540-01 | Control |
| pesquisa | Tb | T0 | Tb | T0 | ฮ (T0 โ Tb) | ฮ (T0 โ Tb) |
| 001 | 338 | 428 | 334 | 428 | 90 | 94 |
| 002 | 252 | 400 | 278 | 401 | 148 | 123 |
| 003 | 221 | 354 | 207 | 291 | 133 | 84 |
| 004 | 292 | 391 | 269 | 396 | 99 | 127 |
| 005 | 326 | 433 | 334 | 389 | 107 | 55 |
| 006 | 176 | 323 | 178 | 334 | 147 | 156 |
| 007 | 365 | 479 | 342 | 451 | 114 | 109 |
| 008 | 303 | 397 | 268 | 393 | 94 | 125 |
| 009 | 311 | 421 | 339 | 420 | 110 | 81 |
| 010 | 245 | 398 | 248 | 391 | 153 | 143 |
| 011 | 209 | 356 | 238 | 350 | 147 | 112 |
| 012 | 230 | 363 | 247 | 361 | 133 | 114 |
| 013 | 278 | 383 | 304 | 486 | 105 | 182 |
| 014 | 340 | 415 | 347 | 436 | 75 | 89 |
| 015 | 237 | 318 | 225 | 322 | 81 | 97 |
| 016 | 228 | 352 | 258 | 368 | 124 | 110 |
| 017 | 270 | 381 | 234 | 339 | 111 | 105 |
| 018 | 284 | 411 | 311 | 406 | 127 | 95 |
| 019 | 226 | 318 | 231 | 318 | 92 | 87 |
| 020 | 288 | 425 | 263 | 372 | 137 | 109 |
| 021 | 300 | 362 | 292 | 365 | 62 | 73 |
| Average | 272.3 | 386.1 | 273.7 | 381.8 | 113.8 | 108.1 |
| Medium | 278.0 | 391.0 | 268.0 | 389.0 | 111.0 | 109.0 |
| Minimum | 176.0 | 318.0 | 178.0 | 291.0 | 62.0 | 55.0 |
| Maximum | 365.0 | 479.0 | 347.0 | 486.0 | 153.0 | 182.0 |
| Standard error | 10.8 | 9.1 | 10.5 | 10.4 | 5.7 | 6.3 |
| IC of 95% | [250.8; 293.8] | [367.9; 404.3] | [252.6; 294.8] | [360.9; 402.6] | [102.4; 125.1] | [95.5; 120.7] |
| ฮ (%) with respect to the T0 | 41.8 | 39.5 |
| % of participants with irritating effect | 100.0 | 100.0 |
| P-Value | <0.001*** | <0.001*** |
| ***significant at level 0.1%; | ||
| **significant at level 1%; | ||
| *significant at level 5% (t-Student test). |
| TABLE 18 |
| Measurements and descriptive statistics of the product |
| ฮ (T30- | |||||||||
| T30- | min โ | ||||||||
| Participant | T0 | min | T1 h | T2 h | T3 h | T4 h | T5 h | T6 h | T0) |
| 001 | 428 | 331 | 345 | 371 | 371 | 366 | 376 | 364 | โ97 |
| 002 | 400 | 270 | 300 | 320 | 320 | 308 | 304 | 317 | โ130 |
| 003 | 354 | 247 | 260 | 232 | 261 | 209 | 219 | 234 | โ107 |
| 004 | 391 | 273 | 288 | 313 | 328 | 312 | 321 | 322 | โ118 |
| 005 | 433 | 298 | 305 | 303 | 302 | 314 | 336 | 346 | โ135 |
| 006 | 323 | 154 | 159 | 167 | 164 | 168 | 172 | 210 | โ169 |
| 007 | 479 | 328 | 325 | 300 | 360 | 386 | 376 | 389 | โ151 |
| 008 | 397 | 263 | 279 | 292 | 277 | 297 | 309 | 291 | โ134 |
| 009 | 421 | 302 | 312 | 326 | 336 | 332 | 351 | 339 | โ119 |
| 010 | 398 | 282 | 283 | 304 | 305 | 302 | 298 | 303 | โ116 |
| 011 | 356 | 232 | 234 | 241 | 245 | 252 | 276 | 257 | โ124 |
| 012 | 363 | 244 | 234 | 227 | 254 | 268 | 242 | 255 | โ119 |
| 013 | 383 | 288 | 283 | 303 | 306 | 325 | 319 | 335 | โ95 |
| 014 | 415 | 353 | 337 | 363 | 379 | 360 | 384 | 392 | โ62 |
| 015 | 318 | 287 | 277 | 291 | 291 | 300 | 307 | 319 | โ31 |
| 016 | 352 | 213 | 202 | 217 | 224 | 254 | 244 | 293 | โ139 |
| 017 | 381 | 280 | 318 | 317 | 315 | 319 | 321 | 326 | โ101 |
| 018 | 411 | 284 | 270 | 280 | 287 | 324 | 328 | 356 | โ127 |
| 019 | 318 | 230 | 226 | 239 | 272 | 255 | 264 | 260 | โ88 |
| 020 | 425 | 310 | 300 | 302 | 297 | 291 | 345 | 345 | โ115 |
| 021 | 362 | 328 | 317 | 320 | 356 | 353 | 333 | 352 | โ34 |
| Average | 386.1 | 276.0 | 278.8 | 287.0 | 297.6 | 299.8 | 306.0 | 314.5 | โ110.0 |
| Medium | 391.0 | 282.0 | 283.0 | 302.0 | 302.0 | 308.0 | 319.0 | 322.0 | โ118.0 |
| Minimum | 318.0 | 154.0 | 159.0 | 167.0 | 164.0 | 168.0 | 172.0 | 210.0 | โ169.0 |
| Maximum | 479.0 | 353.0 | 345.0 | 371.0 | 379.0 | 386.0 | 384.0 | 392.0 | โ31.0 |
| Standard | 9.1 | 10.0 | 10.1 | 10.9 | 11.3 | 11.4 | 11.8 | 10.8 | 7.5 |
| error | |||||||||
| IC of | [367.9; | [256; | [258.5; | [265.3; | [275.1; | [277; | [282.4; | [293; | [โ125.1; |
| 95% | 404.3] | 296.1] | 299] | 308.8] | 320.1] | 322.5] | 329.5] | 336.1] | โ95] |
| ฮ (%) with respect to the T0 | โ28.5 |
| ฮ | ฮ | ฮ | ฮ | ฮ | ฮ | |
| (T1 h โ | (T2 h โ | (T3 h โ | (T4 h โ | (T5 h โ | (T6 h โ | |
| Participant | T0) | T0) | T0) | T0) | T0) | T0) |
| 001 | โ83 | โ57 | โ57 | โ62 | โ52 | โ64 |
| 002 | โ100 | โ80 | โ80 | โ92 | โ96 | โ83 |
| 003 | โ94 | โ122 | โ93 | โ145 | โ135 | โ120 |
| 004 | โ103 | โ78 | โ63 | โ79 | โ70 | โ69 |
| 005 | โ128 | โ130 | โ131 | โ119 | โ97 | โ87 |
| 006 | โ164 | โ156 | โ159 | โ155 | โ151 | โ113 |
| 007 | โ154 | โ179 | โ119 | โ93 | โ103 | โ90 |
| 008 | โ118 | โ105 | โ120 | โ100 | โ88 | โ106 |
| 009 | โ109 | โ95 | โ85 | โ89 | โ70 | โ82 |
| 010 | โ115 | โ94 | โ93 | โ96 | โ100 | โ95 |
| 011 | โ122 | โ115 | โ111 | โ104 | โ80 | โ99 |
| 012 | โ129 | โ136 | โ109 | โ95 | โ121 | โ108 |
| 013 | โ100 | โ80 | โ77 | โ58 | โ64 | โ48 |
| 014 | โ78 | โ52 | โ36 | โ55 | โ31 | โ23 |
| 015 | โ41 | โ27 | โ27 | โ18 | โ11 | 1 |
| 016 | โ150 | โ135 | โ128 | โ98 | โ108 | โ59 |
| 017 | โ63 | โ64 | โ66 | โ62 | โ60 | โ55 |
| 018 | โ141 | โ131 | โ124 | โ87 | โ83 | โ55 |
| 019 | โ92 | โ79 | โ46 | โ63 | โ54 | โ58 |
| 020 | โ125 | โ123 | โ128 | โ134 | โ80 | โ80 |
| 021 | โ45 | โ42 | โ6 | โ9 | โ29 | โ10 |
| Average | โ107.3 | โ99.0 | โ88.5 | โ86.3 | โ80.1 | โ71.6 |
| Medium | โ109.0 | โ95.0 | โ93.0 | โ92.0 | โ80.0 | โ80.0 |
| Minimum | โ164.0 | โ179.0 | โ159.0 | โ155.0 | โ151.0 | โ120.0 |
| Maximum | โ41.0 | โ27.0 | โ6.0 | โ9.0 | โ11.0 | 1.0 |
| Standard | 7.3 | 8.6 | 8.7 | 8.0 | 7.6 | 7.2 |
| error | ||||||
| IC of | [โ122; | [โ116.2; | [โ105.8; | [โ102.2; | [โ95.3; | [โ85.9; โ57.2] |
| 95% | โ92.8] | โ81.9] | โ71.1] | โ70.4] | โ65] | |
| ฮ (%) with respect to the | โ27.8 | โ25.7 | โ22.9 | โ22.4 | โ20.8 | โ18.5 |
| T0 | ||||||
| TABLE 19 |
| Measurements and descriptive statistics of the control |
| ฮ (T30- | |||||||||
| T30- | min โ | ||||||||
| Participant | T0 | min | T1 h | T2 h | T3 h | T4 h | T5 h | T6 h | T0) |
| 001 | 428 | 340 | 351 | 382 | 381 | 384 | 357 | 379 | โ88 |
| 002 | 401 | 326 | 329 | 337 | 338 | 323 | 333 | 331 | โ75 |
| 003 | 291 | 245 | 243 | 250 | 249 | 246 | 241 | 234 | โ46 |
| 004 | 396 | 283 | 315 | 339 | 360 | 352 | 343 | 369 | โ113 |
| 005 | 389 | 325 | 324 | 331 | 319 | 333 | 349 | 344 | โ64 |
| 006 | 334 | 180 | 229 | 203 | 214 | 248 | 251 | 260 | โ154 |
| 007 | 451 | 323 | 360 | 337 | 349 | 382 | 307 | 348 | โ128 |
| 008 | 393 | 288 | 296 | 308 | 292 | 294 | 287 | 321 | โ105 |
| 009 | 420 | 361 | 343 | 348 | 368 | 365 | 398 | 383 | โ59 |
| 010 | 391 | 281 | 306 | 325 | 326 | 325 | 323 | 343 | โ110 |
| 011 | 350 | 268 | 267 | 262 | 285 | 293 | 306 | 310 | โ82 |
| 012 | 361 | 270 | 292 | 261 | 312 | 282 | 287 | 301 | โ91 |
| 013 | 486 | 366 | 377 | 388 | 385 | 399 | 392 | 408 | โ120 |
| 014 | 436 | 396 | 397 | 412 | 421 | 416 | 432 | 419 | โ40 |
| 015 | 322 | 270 | 277 | 262 | 267 | 275 | 296 | 294 | โ52 |
| 016 | 368 | 244 | 222 | 241 | 248 | 264 | 262 | 301 | โ124 |
| 017 | 339 | 288 | 293 | 310 | 303 | 301 | 305 | 296 | โ51 |
| 018 | 406 | 319 | 313 | 318 | 312 | 344 | 316 | 338 | โ87 |
| 019 | 318 | 245 | 225 | 256 | 260 | 260 | 270 | 276 | โ73 |
| 020 | 372 | 293 | 290 | 279 | 331 | 316 | 348 | 357 | โ79 |
| 021 | 365 | 305 | 296 | 278 | 308 | 313 | 329 | 316 | โ60 |
| Average | 381.8 | 296.0 | 302.1 | 306.0 | 315.6 | 319.8 | 320.6 | 329.9 | โ85.8 |
| Medium | 389.0 | 288.0 | 296.0 | 310.0 | 312.0 | 316.0 | 316.0 | 331.0 | โ82.0 |
| Minimum | 291.0 | 180.0 | 222.0 | 203.0 | 214.0 | 246.0 | 241.0 | 234.0 | โ154.0 |
| Maximum | 486.0 | 396.0 | 397.0 | 412.0 | 421.0 | 416.0 | 432.0 | 419.0 | โ40.0 |
| Standard | 10.4 | 10.7 | 10.6 | 11.7 | 11.3 | 10.9 | 10.7 | 10.2 | 6.7 |
| error | |||||||||
| IC of | [360.9; | [274.6; | [281; | [282.6; | [293.1; | [298; | [299.2; | [309.4; | [โ99.2; |
| 95% | 402.6] | 317.4] | 323.3] | 329.5] | 338.2] | 341.6] | 341.9] | 350.4] | โ72.3] |
| ฮ (%) with respect to the T0 | โ22.5 |
| ฮ | ฮ | ฮ | ฮ | ฮ | ฮ | |
| (T1 h โ | (T2 h โ | (T3 h โ | (T4 h โ | (T5 h โ | (T6 h โ | |
| Participant | T0) | T0) | T0) | T0) | T0) | T0) |
| 001 | โ77 | โ46 | โ47 | โ44 | โ71 | โ49 |
| 002 | โ72 | โ64 | โ63 | โ78 | โ68 | โ70 |
| 003 | โ48 | โ41 | โ42 | โ45 | โ50 | โ57 |
| 004 | โ81 | โ57 | โ36 | โ44 | โ53 | โ27 |
| 005 | โ65 | โ58 | โ70 | โ56 | โ40 | โ45 |
| 006 | โ105 | โ131 | โ120 | โ86 | โ83 | โ74 |
| 007 | โ91 | โ114 | โ102 | โ69 | โ144 | โ103 |
| 008 | โ97 | โ85 | โ101 | โ99 | โ106 | โ72 |
| 009 | โ77 | โ72 | โ52 | โ55 | โ22 | โ37 |
| 010 | โ85 | โ66 | โ65 | โ66 | โ68 | โ48 |
| 011 | โ83 | โ88 | โ65 | โ57 | โ44 | โ40 |
| 012 | โ69 | โ100 | โ49 | โ79 | โ74 | โ60 |
| 013 | โ109 | โ98 | โ101 | โ87 | โ94 | โ78 |
| 014 | โ39 | โ24 | โ15 | โ20 | โ4 | โ17 |
| 015 | โ45 | โ60 | โ55 | โ47 | โ26 | โ28 |
| 016 | โ146 | โ127 | โ120 | โ104 | โ106 | โ67 |
| 017 | โ46 | โ29 | โ36 | โ38 | โ34 | โ43 |
| 018 | โ93 | โ88 | โ94 | โ62 | โ90 | โ68 |
| 019 | โ93 | โ62 | โ58 | โ58 | โ48 | โ42 |
| 020 | โ82 | โ93 | โ41 | โ56 | โ24 | โ15 |
| 021 | โ69 | โ87 | โ57 | โ52 | โ36 | โ49 |
| Average | โ79.6 | โ75.7 | โ66.1 | โ62.0 | โ61.2 | โ51.9 |
| Medium | โ81.0 | โ72.0 | โ58.0 | โ57.0 | โ53.0 | โ49.0 |
| Minimum | โ146.0 | โ131.0 | โ120.0 | โ104.0 | โ144.0 | โ103.0 |
| Maximum | โ39.0 | โ24.0 | โ15.0 | โ20.0 | โ4.0 | โ15.0 |
| Standard | 5.4 | 6.4 | 6.4 | 4.6 | 7.5 | 4.8 |
| error | ||||||
| IC of | [โ90.4; | [โ88.6; | [โ78.9; โ53.4] | [โ71.1; โ52.9] | [โ76.2; | [โ61.4; โ42.4] |
| 95% | โ68.8] | โ62.9] | โ46.2] | |||
| ฮ (%) with | โ20.9 | โ19.8 | โ17.3 | โ16.2 | โ16.0 | โ13.6 |
| respect to the T0 | ||||||
| TABLE 20 |
| Average and standard error of each treatment per time, |
| and of the difference between the treatments |
| Product | Control | Product โ Control |
| Time | Average | E.P. | Average | E.P. | Average | E.P. |
| T0 | 386.10 | 9.10 | 381.76 | 10.42 | 4.33 | 7.32 |
| T30 min | 276.05 | 10.01 | 296.00 | 10.71 | โ19.95 | 5.77 |
| T1 h | 278.76 | 10.14 | 302.14 | 10.58 | โ23.38 | 6.72 |
| T2 h | 287.05 | 10.88 | 306.05 | 11.70 | โ19.00 | 6.01 |
| T3 h | 297.62 | 11.25 | 315.62 | 11.28 | โ18.00 | 6.53 |
| T4 h | 299.76 | 11.38 | 319.76 | 10.90 | โ20.00 | 6.49 |
| T5 h | 305.95 | 11.79 | 320.57 | 10.67 | โ14.62 | 7.50 |
| T6 h | 314.52 | 10.76 | 329.90 | 10.24 | โ15.38 | 7.05 |
| TABLE 21 |
| Porcentage of variation in the average with respect to the time |
| T0, and percentage of participants with positive and negative effect |
| Produto-Controle |
| % of | % of | % of | |
| variation with | participants with | participants with | |
| Time | respect to the T0 | positive effect | negative effect |
| T30 | min | โ6.0 | 85.7 | 14.3 |
| T1 | h | โ6.9 | 81.0 | 19.0 |
| T2 | h | โ5.8 | 85.7 | 14.3 |
| T3 | h | โ5.6 | 81.0 | 19.0 |
| T4 | h | โ6.1 | 81.0 | 19.0 |
| T5 | h | โ4.7 | 66.7 | 33.3 |
| T6 | h | โ5.0 | 71.4 | 28.6 |
The product exhibited greater reduction with respect to the T0 in the average values of erythema compared with the control in the times T30min (p-value=0.0010). T1h (p-value=0.0001), T2h (p-value=0.0008), T3h (p-value=0.0050), T4h (p-value=0.0020), T5h (p-value=0.0136) and T6h (p-value=0.0031).
The times T30min, T1h, T3h, T4h, T5h and T6h were lower than the time T0 for the product (p-values <0.001).
Cm2: square centimeters;
G: grams;
H: hours;
No.: number;
Tx: Time after x hours of application of the product.
After a statistic analysis of the results, one can conclude that the composition of the invention promoted reduction of the erythema caused by the tape-stripping technique until the time of 6 hours.
Test 4โInstrumental Evaluation of the Effect of the Composition of the Invention (Called 13-39540-02) on the Erythema Caused by the Tape-Stripping Technique
| TABLE 22 |
| Measurements. descriptive statistics and results of the comparison |
| Participant of | 13-39540-02 | Control | 13-39540-02 | Control |
| the research | Tb | T0 | Tb | T0 | ฮ (T0 โ Tb) | ฮ (T0 โ Tb) |
| 001 | 318 | 425 | 334 | 428 | 107 | 94 |
| 002 | 278 | 391 | 278 | 401 | 113 | 123 |
| 003 | 211 | 290 | 207 | 291 | 79 | 84 |
| 004 | 308 | 436 | 269 | 396 | 128 | 127 |
| 005 | 348 | 455 | 334 | 389 | 107 | 55 |
| 006 | 168 | 326 | 178 | 334 | 158 | 156 |
| 007 | 326 | 473 | 342 | 451 | 147 | 109 |
| 008 | 304 | 379 | 268 | 393 | 75 | 125 |
| 009 | 317 | 407 | 339 | 420 | 90 | 81 |
| 010 | 253 | 383 | 248 | 391 | 130 | 143 |
| 011 | 279 | 364 | 238 | 350 | 85 | 112 |
| 012 | 265 | 379 | 247 | 361 | 114 | 114 |
| 013 | 318 | 435 | 304 | 486 | 117 | 182 |
| 014 | 325 | 418 | 347 | 436 | 93 | 89 |
| 015 | 233 | 319 | 225 | 322 | 86 | 97 |
| 016 | 236 | 349 | 258 | 368 | 113 | 110 |
| 017 | 232 | 314 | 234 | 339 | 82 | 105 |
| 018 | 336 | 447 | 311 | 406 | 111 | 95 |
| 019 | 227 | 303 | 231 | 318 | 76 | 87 |
| 020 | 291 | 395 | 263 | 372 | 104 | 109 |
| 021 | 318 | 399 | 292 | 365 | 81 | 73 |
| Average | 280.5 | 385.1 | 273.7 | 381.8 | 104.6 | 108.1 |
| Medium | 291.0 | 391.0 | 268.0 | 389.0 | 107.0 | 109.0 |
| Minimum | 168.0 | 290.0 | 178.0 | 291.0 | 75.0 | 55.0 |
| Maximum | 348.0 | 473.0 | 347.0 | 486.0 | 158.0 | 182.0 |
| Standard error | 10.5 | 11.5 | 10.5 | 10.4 | 5.1 | 6.3 |
| IC of 95% | [259.5; 301.6] | [362.1; 408.1] | [252.6; 294.8] | [360.9; 402.6] | [94.4; 114.7] | [95.5; 120.7] |
| ฮ (%) with respect to the T0 | 37.3 | 39.5 |
| % of participants with irritaging effect | 100.0 | 100.0 |
| P-Value | <0.001*** | <0.001*** |
| ***significant at level 0.1%; | ||
| **significant at level 1%; | ||
| *significant at level 5% (t-Student test). |
The T0 was higher on the average than the Tb for product and control
| TABLE 23 |
| Measurements and descriptive statistics of the product |
| ฮ (T30- | |||||||||
| T30- | min โ | ||||||||
| Participant | T0 | min | T1 h | T2 h | T3 h | T4 h | T5 h | T6 h | T0) |
| 001 | 425 | 326 | 358 | 363 | 396 | 373 | 372 | 359 | โ99 |
| 002 | 391 | 246 | 262 | 292 | 290 | 292 | 286 | 294 | โ145 |
| 003 | 290 | 216 | 193 | 196 | 213 | 195 | 192 | 202 | โ74 |
| 004 | 436 | 313 | 345 | 386 | 384 | 378 | 360 | 396 | โ123 |
| 005 | 455 | 290 | 301 | 297 | 303 | 310 | 336 | 364 | โ165 |
| 006 | 326 | 162 | 180 | 180 | 172 | 228 | 217 | 215 | โ164 |
| 007 | 473 | 315 | 337 | 312 | 325 | 355 | 327 | 360 | โ158 |
| 008 | 379 | 280 | 288 | 294 | 292 | 299 | 298 | 307 | โ99 |
| 009 | 407 | 312 | 324 | 319 | 326 | 328 | 337 | 326 | โ95 |
| 010 | 383 | 274 | 296 | 304 | 319 | 324 | 322 | 301 | โ109 |
| 011 | 364 | 284 | 271 | 271 | 281 | 279 | 289 | 289 | โ80 |
| 012 | 379 | 228 | 228 | 260 | 248 | 269 | 266 | 273 | โ151 |
| 013 | 435 | 391 | 390 | 405 | 408 | 415 | 415 | 421 | โ44 |
| 014 | 418 | 370 | 354 | 372 | 400 | 383 | 380 | 399 | โ48 |
| 015 | 319 | 293 | 281 | 274 | 290 | 275 | 281 | 297 | โ26 |
| 016 | 349 | 201 | 189 | 219 | 229 | 247 | 248 | 282 | โ148 |
| 017 | 314 | 248 | 238 | 269 | 272 | 264 | 270 | 269 | โ66 |
| 018 | 447 | 333 | 317 | 338 | 325 | 339 | 336 | 389 | โ114 |
| 019 | 303 | 216 | 209 | 224 | 243 | 241 | 253 | 259 | โ87 |
| 020 | 395 | 313 | 290 | 299 | 338 | 304 | 317 | 336 | โ82 |
| 021 | 399 | 355 | 347 | 339 | 386 | 379 | 353 | 381 | โ44 |
| Averate | 385.1 | 284.1 | 285.6 | 295.9 | 306.7 | 308.4 | 307.4 | 320.0 | โ101.0 |
| Medium | 391.0 | 290.0 | 290.0 | 297.0 | 303.0 | 304.0 | 317.0 | 307.0 | โ99.0 |
| Minimum | 290.0 | 162.0 | 180.0 | 180.0 | 172.0 | 195.0 | 192.0 | 202.0 | โ165.0 |
| Maximum | 473.0 | 391.0 | 390.0 | 405.0 | 408.0 | 415.0 | 415.0 | 421.0 | โ26.0 |
| Standard | 11.5 | 12.8 | 13.4 | 13.1 | 14.2 | 12.7 | 12.1 | 13.2 | 9.3 |
| error | |||||||||
| IC of | [362.1; | [258.5; | [258.9; | [269.6; | [278.3; | [282.9; | [283.1; | [293.5; | [โ119.7; |
| 95% | 408.1] | 309.7] | 312.3] | 322.1] | 335] | 333.9] | 331.6] | 346.4] | โ82.3] |
| ฮ (%) with respect to the T0 | โ26.2 |
| ฮ | ฮ | ฮ | ฮ | ฮ | ฮ | |
| (T1 h โ | (T2 h โ | (T3 h โ | (T4 h โ | (T5 h โ | (T6 h โ | |
| Participant | T0) | T0) | T0) | T0) | T0) | T0) |
| 001 | โ67 | โ62 | โ29 | โ52 | โ53 | โ66 |
| 002 | โ129 | โ99 | โ101 | โ99 | โ105 | โ97 |
| 003 | โ97 | โ94 | โ77 | โ95 | โ98 | โ88 |
| 004 | โ91 | โ50 | โ52 | โ58 | โ76 | โ40 |
| 005 | โ154 | โ158 | โ152 | โ145 | โ119 | โ91 |
| 006 | โ146 | โ146 | โ154 | โ98 | โ109 | โ111 |
| 007 | โ136 | โ161 | โ148 | โ118 | โ146 | โ113 |
| 008 | โ91 | โ85 | โ87 | โ80 | โ81 | โ72 |
| 009 | โ83 | โ88 | โ81 | โ79 | โ70 | โ81 |
| 010 | โ87 | โ79 | โ64 | โ59 | โ61 | โ82 |
| 011 | โ93 | โ93 | โ83 | โ85 | โ75 | โ75 |
| 012 | โ151 | โ119 | โ131 | โ110 | โ113 | โ106 |
| 013 | โ45 | โ30 | โ27 | โ20 | โ20 | โ14 |
| 014 | โ64 | โ46 | โ18 | โ35 | โ38 | โ19 |
| 015 | โ38 | โ45 | โ29 | โ44 | โ38 | โ22 |
| 016 | โ160 | โ130 | โ120 | โ102 | โ101 | โ67 |
| 017 | โ76 | โ45 | โ42 | โ50 | โ44 | โ45 |
| 018 | โ130 | โ109 | โ122 | โ108 | โ111 | โ58 |
| 019 | โ94 | โ79 | โ60 | โ62 | โ50 | โ44 |
| 020 | โ105 | โ96 | โ57 | โ91 | โ78 | โ59 |
| 021 | โ52 | โ60 | โ13 | โ20 | โ46 | โ18 |
| Averate | โ99.5 | โ89.2 | โ78.4 | โ76.7 | โ77.7 | โ65.1 |
| Medium | โ93.0 | โ88.0 | โ77.0 | โ80.0 | โ76.0 | โ67.0 |
| Minimum | โ160.0 | โ161.0 | โ154.0 | โ145.0 | โ146.0 | โ113.0 |
| Maximum | โ38.0 | โ30.0 | โ13.0 | โ20.0 | โ20.0 | โ14.0 |
| Standard | 8.0 | 8.3 | 9.9 | 7.3 | 7.2 | 6.8 |
| error | ||||||
| IC of | [โ115.6; | [โ105.8; | [โ98.3; โ58.6] | [โ91.2; โ62.2] | [โ92.1; | [โ78.7; โ51.6] |
| 95% | โ83.4] | โ72.7] | โ63.3] | |||
| ฮ (%) with | โ25.8 | โ23.2 | โ20.4 | โ19.9 | โ20.2 | โ16.9 |
| respect to the | ||||||
| T0 | ||||||
| TABLE 24 |
| Measurements and descriptive statistics of the control |
| ฮ (T30- | |||||||||
| T30- | min โ | ||||||||
| Participant | T0 | min | T1 h | T2 h | T3 h | T4 h | T5 h | T6 h | T0) |
| 001 | 428 | 340 | 351 | 382 | 381 | 384 | 357 | 379 | โ88 |
| 002 | 401 | 326 | 329 | 337 | 338 | 323 | 333 | 331 | โ75 |
| 003 | 291 | 245 | 243 | 250 | 249 | 246 | 241 | 234 | โ46 |
| 004 | 396 | 283 | 315 | 339 | 360 | 352 | 343 | 369 | โ113 |
| 005 | 389 | 325 | 324 | 331 | 319 | 333 | 349 | 344 | โ64 |
| 006 | 334 | 180 | 229 | 203 | 214 | 248 | 251 | 260 | โ154 |
| 007 | 451 | 323 | 360 | 337 | 349 | 382 | 307 | 348 | โ128 |
| 008 | 393 | 288 | 296 | 308 | 292 | 294 | 287 | 321 | โ105 |
| 009 | 420 | 361 | 343 | 348 | 368 | 365 | 398 | 383 | โ59 |
| 010 | 391 | 281 | 306 | 325 | 326 | 325 | 323 | 343 | โ110 |
| 011 | 350 | 268 | 267 | 262 | 285 | 293 | 306 | 310 | โ82 |
| 012 | 361 | 270 | 292 | 261 | 312 | 282 | 287 | 301 | โ91 |
| 013 | 486 | 366 | 377 | 388 | 385 | 399 | 392 | 408 | โ120 |
| 014 | 436 | 396 | 397 | 412 | 421 | 416 | 432 | 419 | โ40 |
| 015 | 322 | 270 | 277 | 262 | 267 | 275 | 296 | 294 | โ52 |
| 016 | 368 | 244 | 222 | 241 | 248 | 264 | 262 | 301 | โ124 |
| 017 | 339 | 288 | 293 | 310 | 303 | 301 | 305 | 296 | โ51 |
| 018 | 406 | 319 | 313 | 318 | 312 | 344 | 316 | 338 | โ87 |
| 019 | 318 | 245 | 225 | 256 | 260 | 260 | 270 | 276 | โ73 |
| 020 | 372 | 293 | 290 | 279 | 331 | 316 | 348 | 357 | โ79 |
| 021 | 365 | 305 | 296 | 278 | 308 | 313 | 329 | 316 | โ60 |
| Average | 381.8 | 296.0 | 302.1 | 306.0 | 315.6 | 319.8 | 320.6 | 329.9 | โ85.8 |
| Medium | 389.0 | 288.0 | 296.0 | 310.0 | 312.0 | 316.0 | 316.0 | 331.0 | โ82.0 |
| Minimum | 291.0 | 180.0 | 222.0 | 203.0 | 214.0 | 246.0 | 241.0 | 234.0 | โ154.0 |
| Maximum | 486.0 | 396.0 | 397.0 | 412.0 | 421.0 | 416.0 | 432.0 | 419.0 | โ40.0 |
| Standard | 10.4 | 10.7 | 10.6 | 11.7 | 11.3 | 10.9 | 10.7 | 10.2 | 6.7 |
| error | |||||||||
| IC of | [360.9; | [274.6; | [281; | [282.6; | [293.1; | [298; | [299.2; | [309.4; | [โ99.2; |
| 95% | 402.6] | 317.4] | 323.3] | 329.5] | 338.2] | 341.6] | 341.9] | 350.4] | โ72.3] |
| ฮ (%) with respect to the T0 | โ22.5 |
| ฮ | ฮ | ฮ | ฮ | ฮ | ฮ | |
| (T1 h โ | (T2 h โ | (T3 h โ | (T4 h โ | (T5 h โ | (T6 h โ | |
| Participant | T0) | T0) | T0) | T0) | T0) | T0) |
| 001 | โ77 | โ46 | โ47 | โ44 | โ71 | โ49 |
| 002 | โ72 | โ64 | โ63 | โ78 | โ68 | โ70 |
| 003 | โ48 | โ41 | โ42 | โ45 | โ50 | โ57 |
| 004 | โ81 | โ57 | โ36 | โ44 | โ53 | โ27 |
| 005 | โ65 | โ58 | โ70 | โ56 | โ40 | โ45 |
| 006 | โ105 | โ131 | โ120 | โ86 | โ83 | โ74 |
| 007 | โ91 | โ114 | โ102 | โ69 | โ144 | โ103 |
| 008 | โ97 | โ85 | โ101 | โ99 | โ106 | โ72 |
| 009 | โ77 | โ72 | โ52 | โ55 | โ22 | โ37 |
| 010 | โ85 | โ66 | โ65 | โ66 | โ68 | โ48 |
| 011 | โ83 | โ88 | โ65 | โ57 | โ44 | โ40 |
| 012 | โ69 | โ100 | โ49 | โ79 | โ74 | โ60 |
| 013 | โ109 | โ98 | โ101 | โ87 | โ94 | โ78 |
| 014 | โ39 | โ24 | โ15 | โ20 | โ4 | โ17 |
| 015 | โ45 | โ60 | โ55 | โ47 | โ26 | โ28 |
| 016 | โ146 | โ127 | โ120 | โ104 | โ106 | โ67 |
| 017 | โ46 | โ29 | โ36 | โ38 | โ34 | โ43 |
| 018 | โ93 | โ88 | โ94 | โ62 | โ90 | โ68 |
| 019 | โ93 | โ62 | โ58 | โ58 | โ48 | โ42 |
| 020 | โ82 | โ93 | โ41 | โ56 | โ24 | โ15 |
| 021 | โ69 | โ87 | โ57 | โ52 | โ36 | โ49 |
| Average | โ79.6 | โ75.7 | โ66.1 | โ62.0 | โ61.2 | โ51.9 |
| Medium | โ81.0 | โ72.0 | โ58.0 | โ57.0 | โ53.0 | โ49.0 |
| Minimum | โ146.0 | โ131.0 | โ120.0 | โ104.0 | โ144.0 | โ103.0 |
| Maximum | โ39.0 | โ24.0 | โ15.0 | โ20.0 | โ4.0 | โ15.0 |
| Standard | 5.4 | 6.4 | 6.4 | 4.6 | 7.5 | 4.8 |
| error | ||||||
| IC of | [โ90.4; | [โ88.6; | [โ78.9; โ53.4] | [โ71.1; โ52.9] | [โ76.2; | [โ61.4; โ42.4] |
| 95% | โ68.8] | โ62.9] | โ46.2] | |||
| ฮ (%) with | โ20.9 | โ19.8 | โ17.3 | โ16.2 | โ16.0 | โ13.6 |
| respect to the | ||||||
| T0 | ||||||
| TABLE 25 |
| Average and standard error of each treatment per time, |
| and of the difference between the treatments |
| Producut | Control | Product โ Control |
| Time | Average | E.P. | Average | E.P. | Average | E.P. |
| T0 | 385.10 | 11.50 | 381.76 | 10.42 | 3.33 | 5.94 |
| T30 min | 284.10 | 12.78 | 296.00 | 10.71 | โ11.90 | 7.02 |
| T1 h | 285.62 | 13.35 | 302.14 | 10.58 | โ16.52 | 6.78 |
| T2 h | 295.86 | 13.13 | 306.05 | 11.70 | โ10.19 | 6.72 |
| T3 h | 306.67 | 14.18 | 315.62 | 11.28 | โ8.95 | 7.01 |
| T4 h | 308.43 | 12.74 | 319.76 | 10.90 | โ11.33 | 5.56 |
| T5 h | 307.38 | 12.12 | 320.57 | 10.67 | โ13.19 | 5.95 |
| T6 h | 319.95 | 13.24 | 329.90 | 10.24 | โ9.95 | 6.84 |
| TABLE 26 |
| Porcentage of variation in the average with respect to the time T0, |
| and percentage of participants with positive and negative effect |
| Product - Control |
| % of variation | % of participants | % of participants | |
| with respect | with positive | with negative |
| Time | to the T0 | effect | effect |
| T30 | min | โ3.8 | 71.4 | 28.6 |
| T1 | h | โ5.0 | 76.2 | 23.8 |
| T2 | h | โ3.3 | 76.2 | 19.0 |
| T3 | h | โ3.0 | 66.7 | 28.6 |
| T4 | h | โ3.7 | 71.4 | 28.6 |
| T5 | h | โ4.2 | 76.2 | 23.8 |
| T6 | h | โ3.3 | 71.4 | 19.0 |
The product exhibited greater reduction with respect to the T0 in the average values of erythema compared with the control in the times T30min (p-value=0.0416), T1h (p-value=0.0040), and T5h (p-value=0.332). No significant differences were found between product and control in the times T2h (p-value=0.0579), T3h (p-value=0.1489). T4h (p-value 0.0712), and T6h (p-value=0.0508).
The times T30, T1h, T2h, T3h, T4h, T5h and T6h were lower than the time T0 for the product (p-values<0.001).
Cm2: square centigrade:
G: grams;
H: hours;
No.: number;
ยฐ C.=degrees Celsius;
Tx: Time after x hours of application of the product.
Test 5โEvaluation of the Reduction of Erythema Caused by the Tape-Stripping Technique by Using the Composition of the Invention (called NT1123-12-A).
Evaluating the efficacy of the topical product (called BDP 1160.18704.6) referring to a composition according to the in reducing skin erythema induced by mechanical insult and evaluated as a function of the redness of the skin. Ion this study, one evaluated the efficacy of a composition according to the invention (NT1123-12-A) in reducing cutaneous erythema with respect to a control (site without application of any products). The evaluations were carried in the following times:
t0: right after formation of the erythema induced by the tape-stripping method;
t0.5: 30 minutes after induction of the erythema and application or non-application of the product;
t1: 1 hour after induction of the erythema and application or non-application of the product;
t2: 2 hours after induction of the erythema and application or non-application of the product;
t3: 3 hours after induction of the erythema and application or non-application of the product;
t4: 4 hours after induction of the erythema and application or non-application of the product;
t5: 5 hours after induction of the erythema and application or non-application of the product.
On each voluntary woman (a total of 25 participants), two 2.5ร4.0 cm rectangles were marked with a surgical pen, called sites, on the left or right forearm. After 30 minutes of air-conditioning, the environment controlled at 20ยฑยฐ C. and 50ยฑ5% of relative humidity of the air, 30 tape-stripping removals with Transporeยฎ 3M tape were carried out at each site, followed by the measurements of erythema by the mexametry and colorimetry technique. These measurements were called basal measurements (t0). After the mechanical insult, the product was applied, and the voluntary women remained at the laboratory for the measurements after 0.5 (30 minutes), 1, 2, 3, 4, 5 and 6 hours. During the whole experiment the climatic conditions were kept constant according to the ranges cited before. At the site intended for the product, 80 ฮผL of the sample under study was applied, one of the sites being used as control (without application of any products).
The measurements were made by using a Mexameterยฎ MX 18 probe, coupled to the equipment Multi Probe Adapter MPA-5 (CKeletronics, Germany). Concomitantly with the measurements, one used an automatized spreadsheet of the software Microsoftยฎ Office Excel 2010 for calculation of the Variation Coefficient (VC/CV) of the readings obtained. One carried out 5 measurements per site in each time. If in 5 measurements the VC/CV presented a value lower than 4%, one would finish the measurements at the site and continue them in the next one; otherwise, the process was restarted by using the colorimeter Byk-Gardner Spectro-Guide Sphere Gloss. For this evaluation, one recorded only the values of a*, which is the axis that ranges from green (โ120) to read (+120). The values were recorded on an automatized spreadsheet of the software Microsoftยฎ Office Excel 2010 for calculation of the Coefficient of Variation (CV/VC) of the readings obtained. One carried out 3 measurements per site in each time. If in 3 measurements the CV/VC presented a value lower than 4%, one would finish the measurements at the site and continue the measurements at the next one; otherwise the process was restarted until a CV/VC lower than 4% would be obtained.
In evaluating of the reduction of the erythema by mexametry, one measured the erythema values (E) for each voluntary woman, at the site intended for the product and at the control site. FIG. 13 shows the average values of Erythema (E) obtained for the product site and control site.
In order to evaluate the homogeneity of t erythema caused by the mechanical insult, the values of erythema measured at each site in the basal time (t0) were statistically compared with each other by using the t-Student test, in pairs, with trust interval of 95%. The result is summarized in Table 27.
| TABLE 27 |
| Comparison of the values of erythema induced |
| after mechanical insult - Value of P. |
| Et0 product vs. Et0 control | 0.5533 (non-significant) | |
According to the results obtained, there was no statistically significant difference between the sites (P>0.05), indicating the homogeneity in the values of erythema after the mechanical insult. This indicated that the study was conducted with homogeneous basal values of erythema at the evaluation sites.
In order to evaluate whether there were significant variations in the erythema along the study, the erythema measurements obtained after 0.5; 1; 2; 3; 4; 5 and 6 hours from application of the product, or the basal measurements (t0) were not compared, carried out right after the mechanical insult (prior to application of the product), by using the single-factor variance analysis method, with Dunnett post-test multiple comparison, considering ฮฑ=0.05. The results of the statistical analysis are summarized in Table 28.
| TABLE 28 |
| Summarized data of the statistical analysis. Comparison of the values |
| of erythema formed after the mechanical insult (t0) vs ti (wherein |
| i = 0.5, 1, 2, 3, 4, 5 and 6 hours from application). P values |
| Comparison group | Control | NT1123-12-A |
| Et0 vs. Et0.5 | P < 0.05 (significant) | P < 0.05 (significant) |
| Et0 vs. Et1 | P < 0.05 (significant) | P < 0.05 (significant) |
| Et0 vs. Et2 | P < 0.05 (significant) | P < 0.05 (significant) |
| Et0 vs. Et3 | P < 0.05 (significant) | P < 0.05 (significant) |
| Et0 vs. Et4 | P < 0.05 (significant) | P < 0.05 (significant) |
| Et0 vs. Et5 | P < 0.05 (significant) | P < 0.05 (significant) |
| Et0 vs. Et6 | P < 0.05 (significant) | P < 0.05 (significant) |
According to the results, it was possible to find out that there was a statistically significant reduction (P<0.05) of the skin erythema after 0.5, 1, 2, 3, 4, 5 and h hours from application of the composition according to the invention as compared with the initial erythema (t0) and still that at the control site (without application of any products) was also obtained one observed a significant reduction (P<0.05) in the erythema formed by the mechanical insult after 0.5, 1, 2, 3, 4, 5 and 6 hours.
Although one has observed a reduction of the erythema at both sites along the study, it is possible to observe, in FIG. 14, which shows the percentage of Reduction of the Erythema (% RE) obtained in each evaluation time, what there was a more marked reduction of the erythema at the site intended for the product.
In order to evaluate the significance of the reduction of the erythema along the time, that is, the Calming Effect (EC/CE) provided by the product with respect to the control, one calculated the ratio between the erythema measurements after 0.5, 1, 2, 3, 4, 5 and 6 hours with respect to the value obtained right after the mechanical insult (t0), by using Equation 1.
EC=Eti/Et0
Equation 1. Calculation of the Calming Effect (EC). Eti=measurement of the coloration of the erythema in the time i (i=0.5, 1, 2, 3, 4, 5 and 6h) and Et0=measurement of the coloration of the basal erythema (right after formation).
The values of the Calming Effect obtained for the site with application of the product, in each time, were statistically compared with the values obtained for the control by using the t-Student test, bimodal, in pairs, with trust interval of 95%. The results of the statistical analysis are listed in Attachment VII and are summarized in Table 29.
| TABLE 29 |
| Comparison of the results in terms of EC between the product and the respective control. |
| P. values |
| Comparison | |||||||
| group | t0.5 | t1 | t2 | t3 | t4 | t5 | t6 |
| ECNT1123-12-A | 0.0014 | 0.0281 | 0.0563 | 0.0787 | 0.0528 | 0.1682 | 0.6979 |
| vs. ECControl | (significant) | (significant) | (Non- | (Non- | (Non- | (Non- | (Non- |
| significant) | significant) | significant) | significant) | significant) | |||
The reduction of the skin erythema provided by the composition of the invention presented a statistically significant difference (P<0.05) after 30 minutes and 1 hour from application as compared with the respective control (site without application of any products). This indicated that the product was effective in reducing skin erythema by mechanical insult and evaluated as a function of the redness of the skin until 1 hour after application.
In evaluating the reduction of the erythema by colorimetry, one measured the values of the coordinate *a for each volunteer at the site intended for the product and at the control site. FIG. 15 shows the average value of the Erythema Intensity (+a*).
In order to evaluate the homogeneity of the erythema formed by the mechanical insult, the values of a* measured at each site in the basal time (t0) were statistically compared by using the t-Student test, in pairs, with trust interval of 95%. The results achieved are summarized in table 30.
| TABLE 30 |
| Comparison of the values of the erythema occurrences |
| induced after mechanical insult. Value of P |
| a*t0 product vs. a* t0 control | 0.6682 (non-significant) | |
According to the results obtained, there was no statistically significant difference between the sites (P>0.05), indicating that there was homogeneity in the values of a* after the mechanical insult. This indicated that the study was conducted with homogeneous basal erythema values for the sites under evaluation.
In order to evaluate whether there were significant alterations in the erythema along the study, the erythema measurements obtained after 0.5, 1, 2, 3, 4, 5, and 6 hours from application of the product or non-application were compared with the basal measurements (t0) carried out right after the mechanical insult (prior to application of the product), by using the single-factor variance analysis, with post-test of Dunnett multiple comparison, considering ฮฑ=0.0.05. The results of the statistical analysis are summarized in Table 31.
| TABLE 31 |
| Summarized data of the statistical analysis. Comparison of the values |
| of a* obtained after the mechanical insult (t0) vs. ti (wherein i = |
| 0.5, 1, 2, 3, 4, 5 e 6 h from application), Values of P. |
| Comparison group | Control | NT1123-12-A |
| a*t0 vs. a*t0.5 | P < 0.05 (significant) | P < 0.05 (significant) |
| a*t0 vs. a*t1 | P < 0.05 (significant) | P < 0.05 (significant) |
| a*t0 vs. a*t2 | P < 0.05 (significant) | P < 0.05 (significant) |
| a*t0 vs. a*t3 | P < 0.05 (significant) | P < 0.05 (significant) |
| a*t0 vs. a*t4 | P < 0.05 (significant) | P < 0.05 (significant) |
| a*t0 vs. a*t5 | P < 0.05 (significant) | P < 0.05 (significant) |
| a*t0 vs. a*t6 | P < 0.05 (significant) | P < 0.05 (significant) |
According to the results, it was possible to observe that that was a statistically significant reduction (P<0.05) of the skin erythema after 0.5, 1, 2, 3, 4, 5, and 6 hours from application of the composition according to the invention as compared with the initial erythema (t0), and that in the control site (without application of any products) there was a significant reduction (P<0.05) in the erythema formed by the mechanical insult after 0.5, 1, 2, 3, 45, and 6 hours. Although there has been a reduction of the erythema at both sites along the study, it is possible to observe, in FIG. 16, which shows the percentage of Reduction of Erythema Intensity (% RIE) obtained in each evaluation time, that there was a greater reduction of the erythema at the site intended for the product.
In order to evaluate the Calming Effect (CE/EC), one calculated the ratio between the measurements of a* after 0.5, 1, 2, 3, 4, 5, and 6 hours with respect to the value obtained along the mechanical insult (t0), by using Equation 2.
EC=a*ti/a*t0
Equation 2โCalculation of the Calming Effect (EC). a*ti=measurement of the coloration of the erythema in the time i (i=0.5, 1, 2, 3, 4, 5 e 6h) e a*t0=measurement of the coloration of the basal erythema (right after formation)
The values of the Calming Effect achieved for the site with application of the product, in each time, were statistically compared with the values achieved for the control by using the t-Student test, bimodal, in pairs, with trust interval of 95%. The results of the statistical analysis are summarized in table 32.
| TABLE 32 |
| A comparison of the results in terms of EC between the product and the |
| respective control. Values of P. |
| Comparison | |||||||
| group | t0.5 | t1 | t2 | t3 | t4 | t5 | t6 |
| ECNT1123-12-A | 0.0358 | 0.0280 | 0.5951 | 0.4005 | 0.5370 | 0.7799 | 0.6547 |
| vs. ECControle | (significant) | (significant) | (non- | (non- | (non- | (non- | (non- |
| sitnificant) | significant) | significant) | significant) | significant) | |||
The reduction of the skin erythema provided by the composition according to the invention shows a statistically significant difference (P<0.05) after 30 minutes and 1 hour from application as compared with the respective control (site without application of any products). This indicated that the product was effective in reducing the skin erythema induced by mechanical insult and evaluated as a function of the skin redness until 1 hour from application.
Test 6โInstrumental Test of the Effect of the Composition of the Invention (Called 12-33171-07) on the Erythema Caused by the Tape-Stripping Technique
Evaluating the potential of calming action of a topical product referring to a composition according to the invention through instrumental measurements of colorimetry.
6.2โMethodology. Materials and Equipment
Two symmetrical 10 cm2 areas having randomized distribution in the front region of the forearms of the patients (a total of 19 participants) were demarcated. One of the areas was used for application of the product and the other was kept as control (untreated area). Colorimetric measurements were made with the equipment Mexameter MX18-Courage+Khazaka prior to tape-stripping removal (Fita Hipoalergรชnica TransproeMR) and application of the product (Tb) after 30 tape-stripping removals at each site (T0) and after 30 minutes, 1, 2, 3, 4, 5 and 6 hours from application of the product.
The measurements were carried out by using the equipment Mexameter MX 18, Courage+Khazaka electronic GmbH through a measurement probe. The readings were made by applying the probe to the test areas with the pressure permitted by the spring (0.5 N).
The measurement area was 5 mm in diameter. Three measurements were carried out in each area. The measurement consisted in measuring the light absorbed and reflected at the wavelengths for green and red for hemoglobin and wavelengths for green and near infrared for melanin.
The operator positioned the probe vertically, forming a 90-degree angle with the skin and cleaned the probe with the aid of a very soft piece of paper prior to the first reading and between the readings of one area an another, even if it were the control area or the initial measurement of each area.
The reading indicated the degree of erythema of the skin. The scale of the equipment is arbitrary, the reading values indicating greater redness of the skin (erythema).
The software used in the analyses was MINITAB 14 AND XLSTAT 2012.
As said before, the number of participants in the research was 19
The trust level considered in the comparative analysis was of 95%.
| TABLE 33 |
| Measurements descriptive statistics and results of the comparison |
| 12-33171-07 | Control | 12-33171-07 | Control |
| Subject | Tb | T0 | Tb | T0 | ฮ (T0 โ Tb) | ฮ (T0 โ Tb) |
| 002 | 222 | 325 | 224 | 291 | 103 | 67 |
| 004 | 262 | 293 | 264 | 322 | 31 | 58 |
| 005 | 173 | 291 | 198 | 256 | 118 | 58 |
| 006 | 255 | 346 | 267 | 323 | 91 | 56 |
| 007 | 147 | 346 | 174 | 213 | 199 | 39 |
| 008 | 238 | 369 | 246 | 338 | 131 | 92 |
| 009 | 209 | 258 | 209 | 334 | 49 | 125 |
| 010 | 157 | 266 | 192 | 172 | 109 | โ20 |
| 012 | 187 | 269 | 162 | 285 | 82 | 123 |
| 013 | 328 | 383 | 340 | 364 | 55 | 24 |
| 014 | 163 | 264 | 117 | 258 | 101 | 141 |
| 015 | 137 | 304 | 163 | 236 | 167 | 73 |
| 016 | 155 | 293 | 135 | 351 | 138 | 216 |
| 017 | 205 | 363 | 193 | 397 | 158 | 204 |
| 018 | 279 | 413 | 271 | 368 | 134 | 97 |
| 019 | 244 | 380 | 227 | 374 | 136 | 147 |
| 020 | 208 | 308 | 243 | 319 | 100 | 76 |
| 021 | 212 | 287 | 229 | 313 | 75 | 84 |
| 022 | 293 | 374 | 330 | 382 | 81 | 52 |
| Average | 214.4 | 322.7 | 220.2 | 310.3 | 108.3 | 90.1 |
| Medium | 209.0 | 308.0 | 224.0 | 322.0 | 103.0 | 76.0 |
| Minimum | 137.0 | 258.0 | 117.0 | 172.0 | 31.0 | โ20.0 |
| Maximum | 328.0 | 413.0 | 340.0 | 397.0 | 199.0 | 216.0 |
| Standard erros | 12.2 | 10.9 | 13.6 | 14.0 | 9.7 | 13.4 |
| IC of 95% | [189.9; | [300.9; | [193; 247.4] | [282.3; | [88.9; 127.8] | [63.2; 117] |
| 238.9] | 344.6] | 338.3] |
| ฮ (%) with respect to the T0 | 50.5 | 40.9 |
| % of volunteers with irritating effect | 100.0 | 94.7 |
| P-Value | <0.001*** | <0.001*** |
| ***significant at level 0.1%; | ||
| **significant at level 1%; | ||
| *significant at level 5% (t-Student test). |
The time T0 was higher on the average than the time Tb for product and control
| TABLE 34 |
| Measurements and descriptive statistics of the product |
| ฮ (T30- | |||||||||
| T30- | min โ | ||||||||
| Subject | T0 | min | T1 h | T2 h | T3 h | T4 h | T5 h | T6 h | T0) |
| 002 | 325 | 214 | 210 | 204 | 224 | 248 | 248 | 227 | โ111 |
| 004 | 293 | 323 | 320 | 284 | 309 | 296 | 280 | 311 | 30 |
| 005 | 291 | 198 | 191 | 194 | 191 | 207 | 203 | 213 | โ93 |
| 006 | 346 | 289 | 232 | 259 | 243 | 262 | 240 | 245 | โ57 |
| 007 | 346 | 209 | 202 | 220 | 269 | 208 | 251 | 277 | โ137 |
| 008 | 369 | 278 | 269 | 267 | 266 | 250 | 264 | 242 | โ91 |
| 009 | 258 | 235 | 192 | 187 | 190 | 186 | 228 | 182 | โ23 |
| 010 | 266 | 193 | 190 | 229 | 225 | 227 | 231 | 233 | โ73 |
| 012 | 269 | 245 | 212 | 211 | 209 | 226 | 302 | 265 | โ24 |
| 013 | 383 | 276 | 319 | 325 | 320 | 305 | 336 | 350 | โ107 |
| 014 | 264 | 149 | 157 | 176 | 178 | 185 | 195 | 195 | โ115 |
| 015 | 304 | 200 | 214 | 191 | 194 | 204 | 214 | 244 | โ104 |
| 016 | 293 | 229 | 192 | 188 | 183 | 207 | 249 | 265 | โ64 |
| 017 | 363 | 225 | 191 | 255 | 206 | 248 | 260 | 249 | โ138 |
| 018 | 413 | 345 | 311 | 359 | 325 | 336 | 366 | 347 | โ68 |
| 019 | 380 | 335 | 312 | 267 | 255 | 316 | 287 | 308 | โ45 |
| 020 | 308 | 230 | 241 | 226 | 166 | 247 | 254 | 231 | โ78 |
| 021 | 287 | 191 | 194 | 196 | 176 | 197 | 190 | 225 | โ96 |
| 022 | 374 | 340 | 335 | 310 | 328 | 316 | 288 | 290 | โ34 |
| Average | 322.7 | 247.6 | 236.0 | 239.4 | 234.6 | 245.8 | 257.2 | 257.8 | โ75.2 |
| Medium | 308.0 | 230.0 | 212.0 | 226.0 | 224.0 | 247.0 | 251.0 | 245.0 | โ78.0 |
| Minimum | 258.0 | 149.0 | 157.0 | 176.0 | 166.0 | 185.0 | 190.0 | 182.0 | โ138.0 |
| Maximum | 413.0 | 345.0 | 335.0 | 359.0 | 328.0 | 336.0 | 366.0 | 350.0 | 30.0 |
| Standard | 10.9 | 13.2 | 12.9 | 12.0 | 12.5 | 10.9 | 10.5 | 10.7 | 9.8 |
| error | |||||||||
| IC of 95% | [300.9; | [221.2; | [210.1; | [215.4; | [209.5; | [224; | [236.2; | [236.5; | [โ94.8; |
| 344.6] | 273.9] | 261.9] | 263.4] | 259.6] | 267.7] | 278.2] | 279.2] | โ55.5] |
| ฮ (%) with respect to T0 | โ23.3 |
| ฮ | ฮ | ฮ | ฮ | ฮ | ฮ | |
| (T1 h โ | (T2 h โ | (T3 h โ | (T4 h โ | (T5 h โ | (T6 h โ | |
| Subject | T0) | T0) | T0) | T0) | T0) | T0) |
| 002 | โ115 | โ121 | โ101 | โ77 | โ77 | โ98 |
| 004 | 27 | โ9 | 16 | 3 | โ13 | 18 |
| 005 | โ100 | โ97 | โ100 | โ84 | โ88 | โ78 |
| 006 | โ114 | โ87 | โ103 | โ84 | โ106 | โ101 |
| 007 | โ144 | โ126 | โ77 | โ138 | โ95 | โ69 |
| 008 | โ100 | โ102 | โ103 | โ119 | โ105 | โ127 |
| 009 | โ66 | โ71 | โ68 | โ72 | โ30 | โ76 |
| 010 | โ76 | โ37 | โ41 | โ39 | โ35 | โ33 |
| 012 | โ57 | โ58 | โ60 | โ43 | 33 | โ4 |
| 013 | โ64 | โ58 | โ63 | โ78 | โ47 | โ33 |
| 014 | โ107 | โ88 | โ86 | โ79 | โ69 | โ69 |
| 015 | โ90 | โ113 | โ110 | โ100 | โ90 | โ60 |
| 016 | โ101 | โ105 | โ110 | โ86 | โ44 | โ28 |
| 017 | โ172 | โ108 | โ157 | โ115 | โ103 | โ114 |
| 018 | โ102 | โ54 | โ88 | โ77 | โ47 | โ66 |
| 019 | โ68 | โ113 | โ125 | โ64 | โ93 | โ72 |
| 020 | โ67 | โ82 | โ142 | โ61 | โ54 | โ77 |
| 021 | โ93 | โ91 | โ111 | โ90 | โ97 | โ62 |
| 022 | โ39 | โ64 | โ46 | โ58 | โ86 | โ84 |
| Average | โ86.7 | โ83.4 | โ88.2 | โ76.9 | โ65.6 | โ64.9 |
| Medium | โ93.0 | โ88.0 | โ100.0 | โ78.0 | โ77.0 | โ69.0 |
| Minimum | โ172.0 | โ126.0 | โ157.0 | โ138.0 | โ106.0 | โ127.0 |
| Maximum | 27.0 | โ9.0 | 16.0 | 3.0 | 33.0 | 18.0 |
| Standard | 9.6 | 7.1 | 9.1 | 7.2 | 8.5 | 8.3 |
| error | ||||||
| IC of 95% | [โ105.9; | [โ97.5; | [โ106.3; | [โ91.3; โ62.5] | [โ82.6; | [โ81.5; โ48.3] |
| โ67.6] | โ69.2] | โ70.1] | โ48.5] | |||
| ฮ (%) with respect | โ26.9 | โ25.8 | โ27.3 | โ23.8 | โ20.3 | โ20.1 |
| to T0 | ||||||
| TABLE 35 |
| Measurements and descriptive statistics of the control |
| ฮ (T30- | |||||||||
| T30- | min โ | ||||||||
| Subject | T0 | min | T1 h | T2 h | T3 h | T4 h | T5 h | T6 h | T0) |
| 002 | 291 | 194 | 214 | 201 | 216 | 245 | 245 | 241 | โ97 |
| 004 | 322 | 327 | 326 | 283 | 301 | 318 | 314 | 297 | 5 |
| 005 | 256 | 193 | 178 | 189 | 189 | 189 | 210 | 196 | โ63 |
| 006 | 323 | 282 | 242 | 250 | 258 | 248 | 250 | 242 | โ41 |
| 007 | 213 | 175 | 181 | 176 | 217 | 198 | 226 | 221 | โ38 |
| 008 | 338 | 304 | 297 | 287 | 288 | 267 | 270 | 280 | โ34 |
| 009 | 334 | 259 | 231 | 213 | 202 | 176 | 228 | 200 | โ75 |
| 010 | 172 | 202 | 166 | 206 | 180 | 200 | 163 | 184 | 30 |
| 012 | 285 | 234 | 204 | 232 | 209 | 230 | 271 | 262 | โ51 |
| 013 | 364 | 279 | 299 | 329 | 365 | 329 | 349 | 352 | โ85 |
| 014 | 258 | 195 | 205 | 195 | 216 | 185 | 191 | 219 | โ63 |
| 015 | 236 | 160 | 151 | 147 | 156 | 212 | 189 | 194 | โ76 |
| 016 | 351 | 273 | 292 | 344 | 278 | 257 | 276 | 290 | โ78 |
| 017 | 397 | 238 | 218 | 251 | 209 | 257 | 251 | 260 | โ159 |
| 018 | 368 | 327 | 267 | 305 | 289 | 272 | 322 | 327 | โ41 |
| 019 | 374 | 298 | 290 | 264 | 235 | 329 | 320 | 311 | โ76 |
| 020 | 319 | 244 | 274 | 237 | 215 | 259 | 254 | 258 | โ75 |
| 021 | 313 | 235 | 235 | 228 | 233 | 248 | 246 | 238 | โ78 |
| 022 | 382 | 333 | 322 | 336 | 328 | 312 | 291 | 297 | โ49 |
| Average | 310.3 | 250.1 | 241.7 | 245.9 | 241.3 | 249.0 | 256.1 | 256.3 | โ60.2 |
| Medium | 322.0 | 244.0 | 235.0 | 237.0 | 217.0 | 248.0 | 251.0 | 258.0 | โ63.0 |
| Minimum | 172.0 | 160.0 | 151.0 | 147.0 | 156.0 | 176.0 | 163.0 | 184.0 | โ159.0 |
| Maximum | 397.0 | 333.0 | 326.0 | 344.0 | 365.0 | 329.0 | 349.0 | 352.0 | 30.0 |
| Standard | 14.0 | 12.4 | 12.4 | 13.0 | 12.4 | 11.1 | 11.3 | 11.0 | 9.0 |
| error | |||||||||
| IC of | [282.3; | [225.3; | [216.9; | [220; | [216.5; | [226.7; | [233.4; | [234.2; | [โ78.3; |
| 95% | 338.3] | 274.9] | 266.4] | 271.8] | 266.1] | 271.3] | 278.8] | 278.3] | โ42.2] |
| ฮ (%) em relaรงรฃo ao T0 | โ19.4 |
| ฮ | ฮ | ฮ | ฮ | ฮ | ฮ | |
| (T1 h โ | (T2 h โ | (T3 h โ | (T4 h โ | (T5 h โ | (T6 h โ | |
| Subject | T0) | T0) | T0) | T0) | T0) | T0) |
| 002 | โ77 | โ90 | โ75 | โ46 | โ46 | โ50 |
| 004 | 4 | โ39 | โ21 | โ4 | โ8 | โ25 |
| 005 | โ78 | โ67 | โ67 | โ67 | โ46 | โ60 |
| 006 | โ81 | โ73 | โ65 | โ75 | โ73 | โ81 |
| 007 | โ32 | โ37 | 4 | โ15 | 13 | 8 |
| 008 | โ41 | โ51 | โ50 | โ71 | โ68 | โ58 |
| 009 | โ103 | โ121 | โ132 | โ158 | โ106 | โ134 |
| 010 | โ6 | 34 | 8 | 28 | โ9 | 12 |
| 012 | โ81 | โ53 | โ76 | โ55 | โ14 | โ23 |
| 013 | โ65 | โ35 | 1 | โ35 | โ15 | โ12 |
| 014 | โ53 | โ63 | โ42 | โ73 | โ67 | โ39 |
| 015 | โ85 | โ89 | โ80 | โ24 | โ47 | โ42 |
| 016 | โ59 | โ7 | โ73 | โ94 | โ75 | โ61 |
| 017 | โ179 | โ146 | โ188 | โ140 | โ146 | โ137 |
| 018 | โ101 | โ63 | โ79 | โ96 | โ46 | โ41 |
| 019 | โ84 | โ110 | โ139 | โ45 | โ54 | โ63 |
| 020 | โ45 | โ82 | โ104 | โ60 | โ65 | โ61 |
| 021 | โ78 | โ85 | โ80 | โ65 | โ67 | โ75 |
| 022 | โ60 | โ46 | โ54 | โ70 | โ91 | โ85 |
| Average | โ68.6 | โ64.4 | โ69.1 | โ61.3 | โ54.2 | โ54.1 |
| Medium | โ77.0 | โ63.0 | โ73.0 | โ65.0 | โ54.0 | โ58.0 |
| Minimum | โ179.0 | โ146.0 | โ188.0 | โ158.0 | โ146.0 | โ137.0 |
| Maximum | 4.0 | 34.0 | 8.0 | 28.0 | 13.0 | 12.0 |
| Standard | 9.0 | 9.4 | 11.4 | 10.0 | 8.7 | 9.0 |
| error | ||||||
| IC of | [โ86.6; | [โ83.1; | [โ91.9; โ46.2] | [โ81.4; โ41.3] | [โ71.6; | [โ72.1; โ36] |
| 95% | โ50.6] | โ45.7] | โ36.8] | |||
| ฮ (%) em relaรงรฃo | โ22.1 | โ20.7 | โ22.3 | โ19.8 | โ17.5 | โ17.4 |
| ao T0 | ||||||
| TABLE 36 |
| Average and standard error for each treatment per |
| time and for the difference between treatments |
| Product | Control | Product โ Control |
| Time | Average | E.P. | Average | E.P. | Average | E.P. |
| T0 | 322.7 | 10.9 | 310.3 | 14.0 | 12.4 | 11.7 |
| T30 min | 247.6 | 13.2 | 250.1 | 12.4 | โ2.5 | 6.1 |
| T1 h | 236.0 | 12.9 | 241.7 | 12.4 | โ5.7 | 8.7 |
| T2 h | 239.4 | 12.0 | 245.9 | 13.0 | โ6.6 | 10.1 |
| T3 h | 234.6 | 12.5 | 241.3 | 12.4 | โ6.7 | 8.7 |
| T4 h | 245.8 | 10.9 | 249.0 | 11.1 | โ3.2 | 6.0 |
| T5 h | 257.2 | 10.5 | 256.1 | 11.3 | 1.1 | 6.7 |
| T6 h | 257.8 | 10.7 | 256.3 | 11.0 | 1.6 | 6.2 |
| TABLE 37 |
| Porcentage of variation in the average with respect to the T0 |
| and percentage of volunteers with positive and negative effect |
| Produto โ Controle |
| % of | |||
| variation with | % of subjects with | % of subjects with | |
| Time | respect to T0 | positive effect | negative effect |
| T30 min | โ3.9 | 63.2 | 36.8 |
| T1 h | โ4.8 | 63.2 | 36.8 |
| T2 h | โ5.1 | 73.7 | 21.1 |
| T3 h | โ5.1 | 68.4 | 21.1 |
| T4 h | โ4.1 | 63.2 | 36.8 |
| T5 h | โ2.9 | 68.4 | 31.6 |
| T6 h | โ2.7 | 63.2 | 36.8 |
No significant difference was found between the treatments in the times T30min, T1h, T4h, T5h and T6h (P-values=0.138; 0.054; 0.147; 0.250; 0.207, respectively). The product was inferior to the control in the times T2h and T3h (p-values =0.048; 00.41, respectively).
Cm2: square centimeters;
G: grams;
H: hours;
No.: number;
ยฐ C.; degrees Celsius;
Tx: Time after x hours from application of the product.
1. An antiperspirant deodorant cosmetic composition with dermo-calming action characterized by comprising 2-methyl-5-cyclohexylpentanol in an amount ranging from 0.1 percent to 1 percent by weight based on a total weight of the composition, aluminum hydrochloride present as a 50 percent solution in an amount of 5.0 percent to 40 percent by weight based on the total weight of the composition, and cosmetically acceptable adjuvants.
2. The composition according to claim 1, characterized by further containing a conditioning agent and a consistency agent.
3. The composition according to claim 2, characterized in that the conditioning agent is pantenol and the consistency agent is hydroxypropylic starch phosphate.
4. The composition according to claim 1, characterized in that the cosmetically acceptable adjuvants are selected from the group consisting of emulsifying agent, preserving agent, antioxidant agent, sequestering agent, chelating agent, oil, water and fragrance.
5. The composition according to claim 4, characterized in that said sequestering agent is disodium EDTA.
6. The composition according to claim 4, characterized in that said preserving agent is dimethyldimethylhydantoin (DMDM hydantoin).
7. The composition according to claim 4, characterized in that said antioxidant agent is butylated hydroxidetoluene (BHT).
8. The composition according to claim 4, characterized in that said oil is olus oil.
9. The composition according to claim 4, characterized in that said oil is hydrogenated palm oil.
10. The composition according to claim 1, characterized by further comprising silica dimethyl sililate and PPG-15 stearyl ether.
11. The composition according to claim 4, characterized in that said emulsifying agent is selected from the group consisting of steareth-2 and steareth-21.
12. The composition according to claim 1, characterized by further comprising dicapryl carbonate, cyclopentasyloxane, dimethiconol, magnesium silicate, ceresin wax.
13. The composition according to claim 4, characterized in that said emulsifying agent is selected from the group consisting of cetostearyl alcohol and ceteareth-20.
14. The composition according to claim 1, characterized in that it is in the form of roll-on deodorant.
15. The composition according to claim 1, characterized in that it is in the form of a cream deodorant.
16. The composition according to claim 14, after depilation.